diff --git a/catima.cpp b/catima.cpp
index 5c9ea13..07913e1 100644
--- a/catima.cpp
+++ b/catima.cpp
@@ -254,7 +254,7 @@ Result calculate(Projectile &p, const Material &t, const Config &c){
         spline_type angular_variance_spline = get_angular_variance_spline(data);
         res.sigma_a = sqrt(angular_variance_spline(T) - angular_variance_spline(res.Eout));
         #endif
-        if( !(c.skip&skip_tof) && t.thickness()>0){
+        if( t.thickness()>0){
             //auto tofdata = calculate_tof(p,t,c);
             //Interpolator tof_spline(energy_table.values, tofdata.data(), energy_table.num,interpolation_t::linear);
             //res.tof = tof_spline(res.Ein) - tof_spline(res.Eout);
diff --git a/config.h b/config.h
index 4b4c99b..5e0256a 100644
--- a/config.h
+++ b/config.h
@@ -19,17 +19,6 @@ namespace catima{
         atima14 = 7
     };
 
-    /**
-      * enum to select which calculation to skip
-      */
-    enum skip_calculation:unsigned char{
-        skip_none = 0,
-        skip_tof = 1,
-        skip_sigma_a = 2,
-        skip_sigma_r = 4,
-        skip_reactions = 128
-    };
-
     /**
       * enum to select which dEdx correction to skip
       */
@@ -58,11 +47,6 @@ namespace catima{
 
     /**
       * structure to store calculation configuration
-      * each group of options are grouped and enum are suppose to use
-      * see catima::z_eff_type, catima::skip_calculation, catima::corrections
-      *
-      * check catima::z_effective()
-      * 
       */
     struct Config{
         #ifndef GLOBAL
@@ -71,12 +55,6 @@ namespace catima{
         unsigned char z_effective=z_eff_type::atima14;
         #endif
 
-        #ifdef REACTIONS
-        unsigned char skip=skip_none;
-        #else
-        unsigned char skip=skip_calculation::skip_reactions;
-        #endif
-
         unsigned char corrections = 0;
         unsigned char calculation = 1;
     };
diff --git a/cwrapper.cpp b/cwrapper.cpp
index 2733401..2c93a15 100644
--- a/cwrapper.cpp
+++ b/cwrapper.cpp
@@ -7,7 +7,6 @@ extern "C" {
 
     CatimaResult catima_calculate(double pa, int pz, double T, double ta, double tz, double thickness, double density){
         catima::default_config.z_effective = catima_defaults.z_effective;
-        catima::default_config.skip = catima_defaults.skip;
         catima::Material mat;
         catima::Projectile p(pa,pz);
         if(tz>200){
diff --git a/cwrapper.h b/cwrapper.h
index 4a2b3fc..90ae782 100644
--- a/cwrapper.h
+++ b/cwrapper.h
@@ -15,28 +15,26 @@ struct CatimaResult{
         double sigma_E;
         double sigma_a;
         double sigma_r;
-        double tof;   
+        double tof;
 };
 
 
     enum z_eff_type {
         none = 0,
-        atima = 1
-    };
-
-    enum skip_calculation{
-        skip_none = 0,
-        skip_tof = 1,
-        skip_sigma_a = 2,
-        skip_sigma_r = 4
+        pierce_blann = 1,
+        anthony_landorf = 2,
+        hubert = 3,
+        winger = 4,
+        schiwietz = 5,
+        global = 6,
+        atima14 = 7
     };
 
 struct CatimaConfig {
         char z_effective;
-        char skip;
 };
 
-struct CatimaConfig catima_defaults = {none,skip_none};
+struct CatimaConfig catima_defaults = {none};
 
 typedef struct CatimaResult CatimaResult;
 
@@ -49,4 +47,4 @@ double catima_energy_straggling_from_E(double pa, int pz, double Tin, double Tou
 }
 #endif
 
-#endif
\ No newline at end of file
+#endif
diff --git a/pymodule/pycatima.cpp b/pymodule/pycatima.cpp
index c6adda1..11bf21e 100644
--- a/pymodule/pycatima.cpp
+++ b/pymodule/pycatima.cpp
@@ -213,13 +213,6 @@ PYBIND11_MODULE(pycatima,m){
             .value("global", z_eff_type::global)
             .value("atima14", z_eff_type::atima14);
 
-    py::enum_<skip_calculation>(m,"skip_calculation")
-            .value("skip_none", skip_calculation::skip_none)
-            .value("skip_tof", skip_calculation::skip_tof)
-            .value("skip_sigma_a", skip_calculation::skip_sigma_a)
-            .value("skip_sigma_r", skip_calculation::skip_sigma_r)
-            .value("skip_reactions", skip_calculation::skip_reactions);
-
     py::enum_<corrections>(m,"corrections")
             .value("no_barkas", corrections::no_barkas)
             .value("no_lindhard", corrections::no_lindhard)
@@ -264,13 +257,11 @@ PYBIND11_MODULE(pycatima,m){
             .def_readwrite("z_effective", &Config::z_effective)
             .def_readwrite("corrections", &Config::corrections)
             .def_readwrite("calculation", &Config::calculation)
-            .def_readwrite("skip", &Config::skip)
             .def("get",[](const Config &r){
                py::dict d;
                d["z_effective"] = r.z_effective;
                d["corrections"] = r.corrections;
                d["calculation"] = r.calculation;
-               d["skip"] = r.skip;
                return d;
                })
             .def("__str__",[](const Config &r){