diff --git a/Phys/FunTuple/src/FunTuple.cpp b/Phys/FunTuple/src/FunTuple.cpp
index f319612b178f5f54911986287c3bfeea389bc0ef..c1c90fbb48a127b480c768aacfa3a1846bf92988 100755
--- a/Phys/FunTuple/src/FunTuple.cpp
+++ b/Phys/FunTuple/src/FunTuple.cpp
@@ -62,45 +62,44 @@ namespace LHCb {
         void( const T& ), Gaudi::Functional::Traits::BaseClass_t<LHCb::DetDesc::AlgorithmWithCondition<GaudiTupleAlg>>>;
 
     // typedefs for different containers of strings (to be used in definition of ParticleTupleProp objects)
-    typedef std::vector<std::string>  VECT_STRINGS;
-    typedef std::vector<VECT_STRINGS> VECT_VECT_STRINGS;
+    using vec_strings_t     = std::vector<std::string>;
+    using vec_vec_strings_t = std::vector<vec_strings_t>;
 
     // typedefs to be used as input signature in making container of thor functors
-    typedef std::vector<ThOr::FunctorDesc>           VECT_THORFUNCDESC;
-    typedef std::vector<VECT_THORFUNCDESC>           VECT_VECT_THORFUNCDESC;
-    typedef std::map<std::string, ThOr::FunctorDesc> MAP_THORFUNCDESC;
-    template <typename InputSignature>
-    using THORFUNC = Functors::Functor<InputSignature>;
+    using vec_funcdesc_t     = std::vector<ThOr::FunctorDesc>;
+    using vec_vec_funcdesc_t = std::vector<vec_funcdesc_t>;
+    using map_funcdesc_t     = std::map<std::string, ThOr::FunctorDesc>;
+
     template <typename InputSignature>
-    using VECT_THORFUNC = std::vector<THORFUNC<InputSignature>>;
+    using vec_functor_t = std::vector<Functors::Functor<InputSignature>>;
     template <typename InputSignature>
-    using VECT_VECT_THORFUNC = std::vector<VECT_THORFUNC<InputSignature>>;
+    using vec_vec_functor_t = std::vector<vec_functor_t<InputSignature>>;
     template <typename InputSignature>
-    using MAP_THORFUNC = std::map<std::string, THORFUNC<InputSignature>>;
+    using map_functor_t = std::map<std::string, Functors::Functor<InputSignature>>;
 
     // custom class for error code handling (probably needs extending)
     namespace EC {
       enum class ErrorCode : StatusCode::code_t {
-        NAME_NUMBER_MISMATCH = 10,
-        NUMBER_NOT_UNITARY,
-        MAX_BUFFER,
-        SIZE_EXCEED,
-        TYPE_NOT_SUPPORTED
+        NameNumberMismatch = 10,
+        NumberNotUnitary,
+        MaxBuffer,
+        SizeExceeded,
+        TypeNotSupported
       };
       struct ErrorCategory : StatusCode::Category {
-        const char* name() const override { return "FunTuple"; }
-        bool        isRecoverable( StatusCode::code_t ) const override { return false; }
-        std::string message( StatusCode::code_t code ) const override {
+        [[nodiscard]] const char* name() const override { return "FunTuple"; }
+        [[nodiscard]] bool        isRecoverable( StatusCode::code_t ) const override { return false; }
+        [[nodiscard]] std::string message( StatusCode::code_t code ) const override {
           switch ( static_cast<ErrorCode>( code ) ) {
-          case ErrorCode::NAME_NUMBER_MISMATCH:
+          case ErrorCode::NameNumberMismatch:
             return "Error (run_full_counter_mode=True): size of field names and number of counters do not match";
-          case ErrorCode::NUMBER_NOT_UNITARY:
+          case ErrorCode::NumberNotUnitary:
             return "Error (run_full_counter_mode=False): number of counters is not unitary";
-          case ErrorCode::MAX_BUFFER:
+          case ErrorCode::MaxBuffer:
             return "The size of vector exceeds the max buffer size of 10000";
-          case ErrorCode::SIZE_EXCEED:
+          case ErrorCode::SizeExceeded:
             return "The size of vector exceeds more than 4. Tupling is not supported.";
-          case ErrorCode::TYPE_NOT_SUPPORTED:
+          case ErrorCode::TypeNotSupported:
             return "Value type returned by functor not recognised. The problematic functor is shown below.";
           default:
             return StatusCode::default_category().message( code );
@@ -121,15 +120,15 @@ namespace LHCb {
     // wrap MCParticles and Particles objects to return specific type (used in find_candidates method of funtuple)
     template <class T1>
     struct function_return {
-      typedef T1 type;
+      using type = T1;
     };
     template <>
     struct function_return<LHCb::MCParticles> {
-      typedef std::vector<LHCb::MCParticle::ConstVector> type;
+      using type = std::vector<LHCb::MCParticle::ConstVector>;
     };
     template <>
     struct function_return<LHCb::Particle::Range> {
-      typedef std::vector<LHCb::Particle::ConstVector> type;
+      using type = std::vector<LHCb::Particle::ConstVector>;
     };
   } // namespace FTuple
 } // namespace LHCb
@@ -140,7 +139,7 @@ STATUSCODE_ENUM_IMPL( LHCb::FTuple::EC::ErrorCode, LHCb::FTuple::EC::ErrorCatego
 namespace LHCb {
   namespace FTuple {
     // max buffer size for storing array
-    unsigned int maxSizeArray{10000};
+    constexpr unsigned int maxSizeArray{10000};
 
     // For tupling arrays user can specify variable name (e.g. "PT") and length name ("nPVs") as "PT[nPVs]".
     // This function gets "nPVs" from fieldname, if nothing found assignes default name "indx"
@@ -150,7 +149,7 @@ namespace LHCb {
       std::string stop_del  = "]";
       idxname               = fieldname.substr( fieldname.find( start_del ) + start_del.length(),
                                   fieldname.find( stop_del ) - ( fieldname.find( start_del ) + start_del.length() ) );
-      if ( idxname == start_del || idxname == stop_del || idxname == "" || idxname == fieldname ||
+      if ( idxname == start_del || idxname == stop_del || idxname.empty() || idxname == fieldname ||
            idxname == fieldname.substr( 0, fieldname.find( stop_del ) ) ) {
         idxname = "indx";
       }
@@ -177,7 +176,7 @@ namespace LHCb {
     // fill for std::vector forward to farray
     template <typename ValueType>
     StatusCode fill_( const Tuples::Tuple& ntuple, const std::string& colname, const std::vector<ValueType>& val ) {
-      if ( val.size() > maxSizeArray ) return StatusCode{EC::ErrorCode::MAX_BUFFER};
+      if ( val.size() > maxSizeArray ) { return StatusCode{EC::ErrorCode::MaxBuffer}; }
       std::string array_idxName = get_length_name( colname );
       return ntuple->farray( colname, val, array_idxName, maxSizeArray );
     }
@@ -185,7 +184,7 @@ namespace LHCb {
     // fill for std::vector<SIMDWrapper::scalar::float_v>
     StatusCode fill_( const Tuples::Tuple& ntuple, const std::string& colname,
                       const std::vector<SIMDWrapper::scalar::float_v>& val ) {
-      if ( val.size() > maxSizeArray ) return StatusCode{EC::ErrorCode::MAX_BUFFER};
+      if ( val.size() > maxSizeArray ) return StatusCode{EC::ErrorCode::MaxBuffer};
       std::string array_idxName = get_length_name( colname );
       auto        cast          = []( const SIMDWrapper::scalar::float_v& vali ) { return vali.cast(); };
       return ntuple->farray( colname, cast, std::begin( val ), std::end( val ), array_idxName, maxSizeArray );
@@ -206,7 +205,7 @@ namespace LHCb {
                       Gaudi::LorentzVector( as_arithmetic( val( 0 ) ), as_arithmetic( val( 1 ) ),
                                             as_arithmetic( val( 2 ) ), as_arithmetic( val( 3 ) ) ) );
       }
-      return StatusCode{EC::ErrorCode::SIZE_EXCEED};
+      return StatusCode{EC::ErrorCode::SizeExceeded};
     }
 
     // fill for LinAlg Vec3 with SIMD type
@@ -237,7 +236,7 @@ namespace LHCb {
     StatusCode fill_( const Tuples::Tuple& ntuple, const std::string& colname,
                       std::map<std::string, ValueType> const& val ) {
       for ( const auto& [key, value] : val ) {
-        if ( auto sc = fill_( ntuple, colname + "_" + key, value ); sc.isFailure() ) return sc;
+        if ( auto sc = fill_( ntuple, colname + "_" += key, value ); sc.isFailure() ) { return sc; }
       }
       return StatusCode::SUCCESS;
     }
@@ -247,7 +246,7 @@ namespace LHCb {
     StatusCode fill_<std::any>( const Tuples::Tuple& ntuple, const std::string& colname,
                                 std::map<std::string, std::any> const& val ) {
       for ( const auto& [key, value] : val ) {
-        if ( auto sc = fill_( ntuple, colname + "_" + key, value ); sc.isFailure() ) return sc;
+        if ( auto sc = fill_( ntuple, colname + "_" += key, value ); sc.isFailure() ) { return sc; }
       }
       return StatusCode::SUCCESS;
     }
@@ -303,7 +302,7 @@ namespace LHCb {
     // fill function to loop through supported types invoking function that calls fill function
     StatusCode fill_( const Tuples::Tuple& ntuple, const std::string& colname, std::any const& val ) {
       auto f = map_valtype_callcolfun.find( val.type() );
-      if ( f == map_valtype_callcolfun.end() ) return StatusCode{EC::ErrorCode::TYPE_NOT_SUPPORTED};
+      if ( f == map_valtype_callcolfun.end() ) { return StatusCode{EC::ErrorCode::TypeNotSupported}; }
       return std::invoke( f->second, ntuple, colname, val );
     }
   } // namespace FTuple
@@ -314,8 +313,8 @@ class FunTupleBase : public LHCb::FTuple::Consumer<T> {
 
 public:
   FunTupleBase( const std::string& name, ISvcLocator* pSvc );
-  virtual StatusCode initialize() override;
-  virtual void       operator()( const T& particles ) const override;
+  StatusCode initialize() override;
+  void       operator()( const T& particles ) const override;
 
 protected:
   // functions for conducting checks in initialise method
@@ -325,9 +324,9 @@ protected:
                                        const std::string& functor_type ) const;
 
   // functions used in the definition of ParticleTupleProp objects
-  void       fill_returntypes( const LHCb::FTuple::VECT_VECT_STRINGS& funcreturntypes,
-                               const LHCb::FTuple::VECT_VECT_STRINGS& funcfieldnames_suffix,
-                               LHCb::FTuple::VECT_VECT_STRINGS&       vec_returntypes );
+  void       fill_returntypes( const LHCb::FTuple::vec_vec_strings_t& funcreturntypes,
+                               const LHCb::FTuple::vec_vec_strings_t& funcfieldnames_suffix,
+                               LHCb::FTuple::vec_vec_strings_t&       vec_returntypes );
   StatusCode setParticleTupleProps();
 
   // functions for instantiating functors and counters (TODO: thor instantiations has template specialisation so need
@@ -338,10 +337,10 @@ protected:
 
   // function for preparing thor used in instantiating
   template <typename Signature>
-  StatusCode prepare_thor( LHCb::FTuple::VECT_VECT_THORFUNC<Signature>& vec_vec_fun );
+  StatusCode prepare_thor( LHCb::FTuple::vec_vec_functor_t<Signature>& vec_vec_fun );
 
   template <typename Signature>
-  StatusCode prepare_thor( LHCb::FTuple::MAP_THORFUNC<Signature>& map_fun );
+  StatusCode prepare_thor( LHCb::FTuple::map_functor_t<Signature>& map_fun );
 
   template <typename F, typename H>
   StatusCode prepare_loki( F& fun_loki, std::vector<std::vector<F>>& func_loki_vec, H& factory_loki );
@@ -378,27 +377,27 @@ private:
   std::vector<ParticleTupleProp> m_particletupleprops;
 
   // field name vector
-  Gaudi::Property<LHCb::FTuple::VECT_STRINGS> m_fieldnames_prefix{
-      this, "field_names_prefix", LHCb::FTuple::VECT_STRINGS(), "List of TBranch name prefixes"};
+  Gaudi::Property<LHCb::FTuple::vec_strings_t> m_fieldnames_prefix{
+      this, "field_names_prefix", LHCb::FTuple::vec_strings_t(), "List of TBranch name prefixes"};
 
   // decay descriptors
-  Gaudi::Property<LHCb::FTuple::VECT_STRINGS> m_decaydescriptors{
-      this, "decay_descriptors", LHCb::FTuple::VECT_STRINGS(), "List of DecayDescriptors"};
+  Gaudi::Property<LHCb::FTuple::vec_strings_t> m_decaydescriptors{
+      this, "decay_descriptors", LHCb::FTuple::vec_strings_t(), "List of DecayDescriptors"};
 
   // LoKi functors (code: string)
-  Gaudi::Property<LHCb::FTuple::VECT_VECT_STRINGS> m_functors_loki{
-      this, "loki_functors", LHCb::FTuple::VECT_VECT_STRINGS(), "Container of list of LoKi functor names"};
+  Gaudi::Property<LHCb::FTuple::vec_vec_strings_t> m_functors_loki{
+      this, "loki_functors", LHCb::FTuple::vec_vec_strings_t(), "Container of list of LoKi functor names"};
 
   // TBranch name for loki
-  Gaudi::Property<LHCb::FTuple::VECT_VECT_STRINGS> m_funcfieldnames_suffix_loki{
-      this, "loki_functor_field_names", LHCb::FTuple::VECT_VECT_STRINGS(),
+  Gaudi::Property<LHCb::FTuple::vec_vec_strings_t> m_funcfieldnames_suffix_loki{
+      this, "loki_functor_field_names", LHCb::FTuple::vec_vec_strings_t(),
       "Container of list of LoKi functor TBranch names"};
 
   // user specified precision to cast loki functor output (currently this not available since Gaudi needs to allow this)
-  Gaudi::Property<LHCb::FTuple::VECT_VECT_STRINGS> m_funcreturntypes_loki{
-      this, "loki_functor_return_types", LHCb::FTuple::VECT_VECT_STRINGS(),
+  Gaudi::Property<LHCb::FTuple::vec_vec_strings_t> m_funcreturntypes_loki{
+      this, "loki_functor_return_types", LHCb::FTuple::vec_vec_strings_t(),
       "Container of list of LoKi functor return types"};
-  LHCb::FTuple::VECT_VECT_STRINGS m_returntypes_loki;
+  LHCb::FTuple::vec_vec_strings_t m_returntypes_loki;
 
   // loki preamble
   Gaudi::Property<std::vector<std::string>> m_preamble_def_loki{this, "loki_preamble", {}, "List of preamble strings"};
@@ -425,32 +424,32 @@ private:
   ToolHandle<Decays::IMCDecay> m_mcdecaytool_loki = {this, "MCDecay", "LoKi::MCDecay"};
 
   // Non-void ThOr functors (used to tuple candidate info)
-  Gaudi::Property<LHCb::FTuple::VECT_VECT_THORFUNCDESC> m_functors_thor{
+  Gaudi::Property<LHCb::FTuple::vec_vec_funcdesc_t> m_functors_thor{
       this, "thor_functors", {}, "List of non-void ThOr Functors"};
 
   // Void ThOr functors (used to tuple event info, called once per candidate)
-  Gaudi::Property<LHCb::FTuple::MAP_THORFUNCDESC> m_void_functors_thor{
+  Gaudi::Property<LHCb::FTuple::map_funcdesc_t> m_void_functors_thor{
       this, "void_thor_functors", {}, "Map of void ThOr Functors"};
 
   // Thor TBranch names
-  Gaudi::Property<LHCb::FTuple::VECT_VECT_STRINGS> m_funcfieldnames_suffix_thor{
-      this, "thor_functor_field_names", LHCb::FTuple::VECT_VECT_STRINGS(),
+  Gaudi::Property<LHCb::FTuple::vec_vec_strings_t> m_funcfieldnames_suffix_thor{
+      this, "thor_functor_field_names", LHCb::FTuple::vec_vec_strings_t(),
       "Contianer of list of ThOr functor TBranch names"};
 
   // user specified precision to cast thor functor output (currently this not available since Gaudi needs to allow this)
-  Gaudi::Property<LHCb::FTuple::VECT_VECT_STRINGS> m_funcreturntypes_thor{
-      this, "thor_functor_return_types", LHCb::FTuple::VECT_VECT_STRINGS(),
+  Gaudi::Property<LHCb::FTuple::vec_vec_strings_t> m_funcreturntypes_thor{
+      this, "thor_functor_return_types", LHCb::FTuple::vec_vec_strings_t(),
       "Container of list of ThOr functor return types"};
-  LHCb::FTuple::VECT_VECT_STRINGS m_returntypes_thor; // return types (vectors where returntypes are actually stored)
+  LHCb::FTuple::vec_vec_strings_t m_returntypes_thor; // return types (vectors where returntypes are actually stored)
 
   // Thor functor factory
   ServiceHandle<Functors::IFactory> m_factory_thor{this, "Factory", "FunctorFactory"};
   // Thor Vector of functors (This is input dependent)
 
   // containers for holding thor (TODO: Need one for v2Paritlce)
-  LHCb::FTuple::VECT_VECT_THORFUNC<LHCb::ThOrInputType::Signature_Particle>   m_fun_thor;
-  LHCb::FTuple::VECT_VECT_THORFUNC<LHCb::ThOrInputType::Signature_MCParticle> m_mcfun_thor;
-  LHCb::FTuple::MAP_THORFUNC<LHCb::ThOrInputType::Signature_Void>             m_void_thor;
+  LHCb::FTuple::vec_vec_functor_t<LHCb::ThOrInputType::Signature_Particle>   m_fun_thor;
+  LHCb::FTuple::vec_vec_functor_t<LHCb::ThOrInputType::Signature_MCParticle> m_mcfun_thor;
+  LHCb::FTuple::map_functor_t<LHCb::ThOrInputType::Signature_Void>           m_void_thor;
 
   // Gaudi event monitoring counter
   mutable Gaudi::Accumulators::Counter<> m_processed_evt{this, "# processed events"};
@@ -551,7 +550,7 @@ StatusCode FunTupleBase<LHCb::MCParticles>::instantiate_thor() {
 
 template <class T>
 template <typename Signature>
-StatusCode FunTupleBase<T>::prepare_thor( LHCb::FTuple::VECT_VECT_THORFUNC<Signature>& vec_vec_fun ) {
+StatusCode FunTupleBase<T>::prepare_thor( LHCb::FTuple::vec_vec_functor_t<Signature>& vec_vec_fun ) {
   if ( this->msgLevel( MSG::VERBOSE ) ) { this->verbose() << "Preparing ThOr functors" << endmsg; }
   // retrive factory
   m_factory_thor.retrieve().ignore();
@@ -576,7 +575,7 @@ StatusCode FunTupleBase<T>::prepare_thor( LHCb::FTuple::VECT_VECT_THORFUNC<Signa
 
 template <class T>
 template <typename Signature>
-StatusCode FunTupleBase<T>::prepare_thor( LHCb::FTuple::MAP_THORFUNC<Signature>& map_fun ) {
+StatusCode FunTupleBase<T>::prepare_thor( LHCb::FTuple::map_functor_t<Signature>& map_fun ) {
   if ( this->msgLevel( MSG::VERBOSE ) ) { this->verbose() << "Preparing ThOr functors" << endmsg; }
   // retrive factory
   m_factory_thor.retrieve().ignore();
@@ -609,24 +608,26 @@ template <typename F, typename H>
 StatusCode FunTupleBase<T>::prepare_loki( F& fun_loki, std::vector<std::vector<F>>& func_loki_vec, H& factory_loki ) {
   MsgStream debug = this->debug();
   // Instantiate all the functors (the FunctorProp objects created cant hold some reason this info)
-  if ( this->msgLevel( MSG::VERBOSE ) ) this->verbose() << "Preparing LoKi functors" << endmsg;
+  if ( this->msgLevel( MSG::VERBOSE ) ) { this->verbose() << "Preparing LoKi functors" << endmsg; }
   m_preamble_loki = boost::algorithm::join( m_preamble_def_loki.value(), "\n" );
   for ( const auto& ptp : m_particletupleprops ) {
     std::vector<F> i_fun;
     for ( const auto& tup : ptp.FunctorProps_loki() ) {
-      if ( this->msgLevel( MSG::DEBUG ) ) debug << "prepare_loki: Getting LoKi functor" << endmsg;
+      if ( this->msgLevel( MSG::DEBUG ) ) { debug << "prepare_loki: Getting LoKi functor" << endmsg; }
       StatusCode sc_func_mc = factory_loki->get( tup.Func_loki, fun_loki, m_preamble_loki );
       if ( sc_func_mc.isFailure() ) {
         return this->Error( "Error in preparing functor in particle field " + ptp.FieldName() +
                             " with functor field name " + tup.Func_fieldname_loki );
       }
-      if ( this->msgLevel( MSG::DEBUG ) )
+      if ( this->msgLevel( MSG::DEBUG ) ) {
         debug << "prepare_loki: Storing the functor into a temporary vector" << endmsg;
+      }
       i_fun.push_back( fun_loki ); // different
-      if ( this->msgLevel( MSG::DEBUG ) )
+      if ( this->msgLevel( MSG::DEBUG ) ) {
         debug << "prepare_loki: Created a function in " + ptp.FieldName() + " with " + tup.Func_fieldname_loki +
                      " : The function is '"
               << i_fun.back() << "'" << endmsg;
+      }
     }
     func_loki_vec.push_back( i_fun );
   }
@@ -638,15 +639,14 @@ StatusCode FunTupleBase<T>::instantiate_dynamic_counters() {
   auto append_fields = [&]( auto& counters, std::string const& prefix, bool const& full_counter_mode ) {
     return counters.with_lock( [&]( std::deque<Gaudi::Accumulators::Counter<>>& counter ) {
       if ( full_counter_mode ) {
-        for ( const auto& bn : m_fieldnames_prefix ) counter.emplace_back( this, prefix + bn );
+        for ( const auto& bn : m_fieldnames_prefix ) { counter.emplace_back( this, prefix + bn ); }
         return ( counter.size() == m_fieldnames_prefix.size() )
                    ? StatusCode{StatusCode::SUCCESS}
-                   : StatusCode{LHCb::FTuple::EC::ErrorCode::NAME_NUMBER_MISMATCH};
-      } else {
-        counter.emplace_back( this, prefix + m_fieldnames_prefix[0] );
-        return ( counter.size() == 1 ) ? StatusCode{StatusCode::SUCCESS}
-                                       : StatusCode{LHCb::FTuple::EC::ErrorCode::NUMBER_NOT_UNITARY};
+                   : StatusCode{LHCb::FTuple::EC::ErrorCode::NameNumberMismatch};
       }
+      counter.emplace_back( this, prefix + m_fieldnames_prefix[0] );
+      return ( counter.size() == 1 ) ? StatusCode{StatusCode::SUCCESS}
+                                     : StatusCode{LHCb::FTuple::EC::ErrorCode::NumberNotUnitary};
     } );
   };
 
@@ -679,7 +679,7 @@ StatusCode FunTupleBase<T>::checks() {
   }
 
   if ( !m_all_empty_lokifuncs ) {
-    if ( this->msgLevel( MSG::VERBOSE ) ) this->verbose() << "Conducting checks with LoKi " << endmsg;
+    if ( this->msgLevel( MSG::VERBOSE ) ) { this->verbose() << "Conducting checks with LoKi " << endmsg; }
     // If the return types are not given set to a default (double), currently property not used anywhere, so does not
     // matter
     fill_returntypes( m_funcreturntypes_loki, m_funcfieldnames_suffix_loki, m_returntypes_loki );
@@ -692,7 +692,7 @@ StatusCode FunTupleBase<T>::checks() {
   }
 
   if ( !m_all_empty_thorfuncs ) {
-    if ( this->msgLevel( MSG::VERBOSE ) ) this->verbose() << "Conducting checks with ThOr " << endmsg;
+    if ( this->msgLevel( MSG::VERBOSE ) ) { this->verbose() << "Conducting checks with ThOr " << endmsg; }
     // If the return types are not given set to a default (double), currently property not used anywhere, so does not
     // matter
     fill_returntypes( m_funcreturntypes_thor, m_funcfieldnames_suffix_thor, m_returntypes_thor );
@@ -728,14 +728,14 @@ StatusCode FunTupleBase<T>::checks_with_vector_sizes( const int& fieldnames_size
 }
 
 template <class T>
-void FunTupleBase<T>::fill_returntypes( const LHCb::FTuple::VECT_VECT_STRINGS& funcreturntypes,
-                                        const LHCb::FTuple::VECT_VECT_STRINGS& funcfieldnames_suffix,
-                                        LHCb::FTuple::VECT_VECT_STRINGS&       vec_returntypes ) {
+void FunTupleBase<T>::fill_returntypes( const LHCb::FTuple::vec_vec_strings_t& funcreturntypes,
+                                        const LHCb::FTuple::vec_vec_strings_t& funcfieldnames_suffix,
+                                        LHCb::FTuple::vec_vec_strings_t&       vec_returntypes ) {
   if ( funcreturntypes.empty() ) {
     // If the return types are not given set to a default (double), currently property not used anywhere, so does not
     // matter
     for ( const auto& fbnm : funcfieldnames_suffix ) {
-      LHCb::FTuple::VECT_STRINGS returntypes( fbnm.size() );
+      LHCb::FTuple::vec_strings_t returntypes( fbnm.size() );
       for ( std::size_t j = 0; j < fbnm.size(); ++j ) { returntypes[j] = std::string( "double" ); }
       vec_returntypes.push_back( returntypes );
     }
@@ -747,8 +747,9 @@ void FunTupleBase<T>::fill_returntypes( const LHCb::FTuple::VECT_VECT_STRINGS& f
 template <class T>
 StatusCode FunTupleBase<T>::setParticleTupleProps() {
   // make a list of ParticleTupleProp objects to hold info related to particle being tupled
-  if ( this->msgLevel( MSG::VERBOSE ) )
+  if ( this->msgLevel( MSG::VERBOSE ) ) {
     this->verbose() << "Setting the properties of ParticleTupleProp objects" << endmsg;
+  }
   for ( unsigned int i = 0; i < m_fieldnames_prefix.size(); i++ ) {
     ParticleTupleProp ptp = ParticleTupleProp();
     ptp.setFieldName( m_fieldnames_prefix[i] );
@@ -773,13 +774,13 @@ void FunTupleBase<T>::operator()( const T& particles ) const {
   // Messaging service
   MsgStream debug = this->debug();
 
-  if ( this->msgLevel( MSG::DEBUG ) ) debug << "operator(): Finding candidates" << endmsg;
+  if ( this->msgLevel( MSG::DEBUG ) ) { debug << "operator(): Finding candidates" << endmsg; }
   const auto vector_of_cands = find_candidates( particles );
 
-  if ( this->msgLevel( MSG::DEBUG ) ) debug << "operator(): If any candidates found book nTuple" << endmsg;
+  if ( this->msgLevel( MSG::DEBUG ) ) { debug << "operator(): If any candidates found book nTuple" << endmsg; }
   write_tuple( vector_of_cands );
 
-  if ( this->msgLevel( MSG::DEBUG ) ) debug << "operator(): Moving to next event updating the counter" << endmsg;
+  if ( this->msgLevel( MSG::DEBUG ) ) { debug << "operator(): Moving to next event updating the counter" << endmsg; }
   ++m_processed_evt;
 }
 
@@ -793,16 +794,17 @@ void FunTupleBase<T>::write_tuple( const std::vector<std::vector<ValueType>>& ve
 
   // quit if current event has no candidate
   if ( vector_of_cands[0].empty() ) {
-    if ( this->msgLevel( MSG::DEBUG ) ) debug << "write_tuple: No candidates booking skipped" << endmsg;
+    if ( this->msgLevel( MSG::DEBUG ) ) { debug << "write_tuple: No candidates booking skipped" << endmsg; }
     return;
-  } else {
-    if ( this->msgLevel( MSG::DEBUG ) ) debug << "write_tuple: Candidates found booking their info" << endmsg;
   }
 
-  if ( this->msgLevel( MSG::DEBUG ) ) debug << "write_tuple: Defining Tuples:Tuple instance" << endmsg;
+  if ( this->msgLevel( MSG::DEBUG ) ) {
+    debug << "write_tuple: Candidates found booking their info" << endmsg;
+    debug << "write_tuple: Defining Tuples:Tuple instance" << endmsg;
+  }
   Tuples::Tuple ntuple = this->nTuple( m_ntupleTname );
 
-  if ( this->msgLevel( MSG::DEBUG ) ) debug << "write_tuple: Looping over the candidates and fields" << endmsg;
+  if ( this->msgLevel( MSG::DEBUG ) ) { debug << "write_tuple: Looping over the candidates and fields" << endmsg; }
   for ( unsigned int ncand = 0; ncand < vector_of_cands[0].size(); ncand++ ) { // number of cands (write tuple)
 
     // fill event level info with void ThOr functors
@@ -813,7 +815,7 @@ void FunTupleBase<T>::write_tuple( const std::vector<std::vector<ValueType>>& ve
       // helpful notifier on what might have gone wrong
       if ( sc_book_event.isFailure() ) {
         using LHCb::FTuple::EC::ErrorCode;
-        if ( sc_book_event.getCode() == static_cast<StatusCode::code_t>( ErrorCode::TYPE_NOT_SUPPORTED ) ) {
+        if ( sc_book_event.getCode() == static_cast<StatusCode::code_t>( ErrorCode::TypeNotSupported ) ) {
           err << "Value type returned by functor not supported. Problematic ThOr functor : " << value.code
               << " with field name: " << key << endmsg;
         } else {
@@ -845,15 +847,17 @@ void FunTupleBase<T>::write_tuple( const std::vector<std::vector<ValueType>>& ve
         for ( unsigned int nfunctor = 0; nfunctor < ( ptp.FunctorProps_loki() ).size(); nfunctor++ ) {
           ParticleProp::FunctorProp_loki functup   = ( ptp.FunctorProps_loki() )[nfunctor];
           std::string                    fieldname = ptp.FieldName() + "_" + functup.Func_fieldname_loki;
-          if ( this->msgLevel( MSG::DEBUG ) )
+          if ( this->msgLevel( MSG::DEBUG ) ) {
             debug << "write_tuple: Getting Loki output for fieldname " << fieldname << endmsg;
+          }
           auto val = get_loki_output( *cand, nfield, nfunctor );
-          if ( this->msgLevel( MSG::DEBUG ) )
+          if ( this->msgLevel( MSG::DEBUG ) ) {
             debug << "write_tuple: Booking Loki output for fieldname " << fieldname << endmsg;
+          }
           StatusCode sc_book = LHCb::FTuple::fill_( ntuple, fieldname, val );
           if ( sc_book.isFailure() ) {
             using LHCb::FTuple::EC::ErrorCode;
-            if ( sc_book.getCode() == static_cast<StatusCode::code_t>( ErrorCode::TYPE_NOT_SUPPORTED ) ) {
+            if ( sc_book.getCode() == static_cast<StatusCode::code_t>( ErrorCode::TypeNotSupported ) ) {
               err << "Value type returned by functor not supported. Problematic LoKi functor : " << functup.Func_loki
                   << " with field name: " << fieldname << endmsg;
             } else {
@@ -871,15 +875,17 @@ void FunTupleBase<T>::write_tuple( const std::vector<std::vector<ValueType>>& ve
         for ( unsigned int nfunctor = 0; nfunctor < ( ptp.FunctorProps_thor() ).size(); nfunctor++ ) {
           ParticleProp::FunctorProp_thor functup   = ( ptp.FunctorProps_thor() )[nfunctor];
           std::string                    fieldname = ptp.FieldName() + "_" + functup.Func_fieldname_thor;
-          if ( this->msgLevel( MSG::DEBUG ) )
+          if ( this->msgLevel( MSG::DEBUG ) ) {
             debug << "write_tuple: Getting ThOr output for fieldname " << fieldname << endmsg;
+          }
           auto val = get_thor_output( *cand, nfield, nfunctor );
-          if ( this->msgLevel( MSG::DEBUG ) )
+          if ( this->msgLevel( MSG::DEBUG ) ) {
             debug << "write_tuple: Booking ThOr output for fieldname " << fieldname << endmsg;
+          }
           StatusCode sc_book = LHCb::FTuple::fill_( ntuple, fieldname, val );
           if ( sc_book.isFailure() ) {
             using LHCb::FTuple::EC::ErrorCode;
-            if ( sc_book.getCode() == static_cast<StatusCode::code_t>( ErrorCode::TYPE_NOT_SUPPORTED ) ) {
+            if ( sc_book.getCode() == static_cast<StatusCode::code_t>( ErrorCode::TypeNotSupported ) ) {
               err << "Value type returned by functor not supported. Problematic ThOr functor : "
                   << ( *( functup.Func_thor ) ).code << " with field name: " << fieldname << endmsg;
             } else {
@@ -891,7 +897,7 @@ void FunTupleBase<T>::write_tuple( const std::vector<std::vector<ValueType>>& ve
         }
       }
     }
-    if ( this->msgLevel( MSG::DEBUG ) ) debug << "write_tuple: Writing tuple after booking" << endmsg;
+    if ( this->msgLevel( MSG::DEBUG ) ) { debug << "write_tuple: Writing tuple after booking" << endmsg; }
     StatusCode sc_write = ntuple->write();
     if ( sc_write.isFailure() ) { this->err() << "Unable to write the tuple" << endmsg; }
   }
@@ -910,8 +916,9 @@ FunTupleBase<LHCb::MCParticles>::find_candidates( const LHCb::MCParticles& parti
     debug << "find_candidates (MCParticles): Preparing the input particle vector" << endmsg;
   }
   LHCb::MCParticle::ConstVector input;
-  if ( this->msgLevel( MSG::DEBUG ) )
+  if ( this->msgLevel( MSG::DEBUG ) ) {
     debug << "find_candidates (MCParticles): Using the particles passed through the algorithm" << endmsg;
+  }
   for ( const auto& ip : particles ) {
     if ( this->msgLevel( MSG::DEBUG ) ) {
       debug << "find_candidates (MCParticles): Filling input vector with particle" << endmsg;
@@ -962,7 +969,7 @@ FunTupleBase<LHCb::MCParticles>::find_candidates( const LHCb::MCParticles& parti
     if ( m_full_counter_mode ) {
       update_counters( nfield, cands.size() );
     } else {
-      if ( nfield == 0 ) update_counters( nfield, cands.size() );
+      if ( nfield == 0 ) { update_counters( nfield, cands.size() ); }
     }
     // push the cands to vector of cands
     if ( this->msgLevel( MSG::DEBUG ) ) {
@@ -987,8 +994,9 @@ FunTupleBase<LHCb::Particle::Range>::find_candidates( const LHCb::Particle::Rang
     debug << "find_candidates (Particles): Preparing the input particle vector" << endmsg;
   }
   LHCb::Particle::ConstVector input;
-  if ( this->msgLevel( MSG::DEBUG ) )
+  if ( this->msgLevel( MSG::DEBUG ) ) {
     debug << "find_candidates (Particles): Using the particles passed through the algorithm" << endmsg;
+  }
   for ( const auto& ip : particles ) {
     if ( this->msgLevel( MSG::DEBUG ) ) {
       debug << "find_candidates (Particles): Filling input vector with particle" << endmsg;
@@ -1037,7 +1045,7 @@ FunTupleBase<LHCb::Particle::Range>::find_candidates( const LHCb::Particle::Rang
     if ( m_full_counter_mode ) {
       update_counters( nfield, cands.size() );
     } else {
-      if ( nfield == 0 ) update_counters( nfield, cands.size() );
+      if ( nfield == 0 ) { update_counters( nfield, cands.size() ); }
     }
     // push the cands to vector of cands
     if ( this->msgLevel( MSG::DEBUG ) ) {
@@ -1053,24 +1061,25 @@ FunTupleBase<LHCb::Particle::Range>::find_candidates( const LHCb::Particle::Rang
 template <class T>
 void FunTupleBase<T>::update_counters( const unsigned int& field_indx, const unsigned int& ncands ) const {
   MsgStream debug = this->debug();
-  if ( this->msgLevel( MSG::DEBUG ) )
+  if ( this->msgLevel( MSG::DEBUG ) ) {
     debug << "update_counters: The number of candidates found in the event are " << ncands << " for field index "
           << field_indx << endmsg;
+  }
   // define a function to increment the counters
   auto increment_counter = [&field_indx]( auto& counters ) {
     return counters.with_lock( [&]( std::deque<Gaudi::Accumulators::Counter<>>& counter ) { ++counter[field_indx]; } );
   };
   if ( ncands == 0 ) {
     increment_counter( m_vec_empty_evt );
-    if ( this->msgLevel( MSG::DEBUG ) )
+    if ( this->msgLevel( MSG::DEBUG ) ) {
       this->Warning( "update_counters: No candidates found in this event. Skipping this event", StatusCode::SUCCESS )
           .ignore();
+    }
     return;
-  } else {
-    increment_counter( m_vec_nonempty_evt );
   }
+  increment_counter( m_vec_nonempty_evt );
+
   if ( ncands > 1 ) { increment_counter( m_vec_multiple_cand_evt ); }
-  return;
 }
 
 DECLARE_COMPONENT_WITH_ID( FunTupleBase<LHCb::Particle::Range>, "FunTupleBase_Particles" )