diff --git a/CMakeLists.txt b/CMakeLists.txt
index d8de23b..4014091 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,5 +1,5 @@
 cmake_minimum_required(VERSION 3.25)
-project(blt-gp VERSION 0.1.50)
+project(blt-gp VERSION 0.1.51)
 
 include(CTest)
 
diff --git a/examples/symbolic_regression.cpp b/examples/symbolic_regression.cpp
index e7999be..b722744 100644
--- a/examples/symbolic_regression.cpp
+++ b/examples/symbolic_regression.cpp
@@ -90,8 +90,6 @@ float example_function(float x)
     return x * x * x * x + x * x * x + x * x + x;
 }
 
-BLT_MAKE_CONFIG_TYPE(test, BLT_MAKE_GETTER_AND_SETTER(int, silly) BLT_MAKE_GETTER(int, billy));
-
 int main()
 {
     test t;
diff --git a/include/blt/gp/transformers.h b/include/blt/gp/transformers.h
index 65aa279..0879c11 100644
--- a/include/blt/gp/transformers.h
+++ b/include/blt/gp/transformers.h
@@ -57,6 +57,10 @@ namespace blt::gp
     class crossover_t
     {
         public:
+            struct point_info_t
+            {
+                type_id return_type;
+            };
             struct crossover_point_t
             {
                 blt::ptrdiff_t p1_crossover_point;
@@ -78,7 +82,8 @@ namespace blt::gp
             {}
             
             std::optional<crossover_t::crossover_point_t> get_crossover_point(gp_program& program, const tree_t& c1, const tree_t& c2) const;
-            std::optional<blt::ptrdiff_t> find_place_of_type(gp_program& program, const tree_t& t, type_id type) const;
+            
+            static std::optional<blt::ptrdiff_t> find_place_of_type(gp_program& program, const tree_t& t, type_id type);
             
             /**
              * child1 and child2 are copies of the parents, the result of selecting a crossover point and performing standard subtree crossover.
@@ -167,7 +172,7 @@ namespace blt::gp
                     0.01,       // JUMP_FUNC
                     0.05        // COPY
                                                                                                                                    );
-};
+    };
     
 }
 
diff --git a/lib/blt b/lib/blt
index 7410dfe..56a3c2f 160000
--- a/lib/blt
+++ b/lib/blt
@@ -1 +1 @@
-Subproject commit 7410dfe0ff6196e77856a79b4c92b05a90e35880
+Subproject commit 56a3c2f836a37258290c2cc43b52df18249b1c0c
diff --git a/src/transformers.cpp b/src/transformers.cpp
index cfa1f04..fca6946 100644
--- a/src/transformers.cpp
+++ b/src/transformers.cpp
@@ -211,9 +211,13 @@ namespace blt::gp
         return crossover_point_t{static_cast<blt::ptrdiff_t>(crossover_point), static_cast<blt::ptrdiff_t>(attempted_point)};
     }
     
-    std::optional<blt::ptrdiff_t> crossover_t::find_place_of_type(gp_program& program, const tree_t& t, type_id type) const
+    std::optional<blt::ptrdiff_t> crossover_t::find_place_of_type(gp_program& program, const tree_t& t, type_id type)
     {
-        return std::optional<blt::ptrdiff_t>();
+        auto attempted_point = program.get_random().get_size_t(1ul, t.get_operations().size());
+        auto& attempted_point_type = program.get_operator_info(t.get_operations()[attempted_point].id);
+        if (type == attempted_point_type.return_type)
+            return {attempted_point};
+        return {};
     }
     
     bool mutation_t::apply(gp_program& program, const tree_t&, tree_t& c)