diff --git a/Makefile b/Makefile
index b5dbccf..ecafa0c 100644
--- a/Makefile
+++ b/Makefile
@@ -39,8 +39,8 @@ EXT           = cpp
 
 CFLAGS        = -Wall -Wextra -Werror $(INCLUDES)
 CFLAGS       += -MMD -MP #see end-page note on header dependencie
-#CFLAGS       += -std=c++98
-#CFLAGS       += -g3
+CFLAGS       += -std=c++98
+CFLAGS       += -g3
 
 CFLAGS_STL    = $(CFLAGS)
 CFLAGS_STL   += -D STL
diff --git a/headers/map.hpp b/headers/map.hpp
index 48bf5ce..c20142f 100644
--- a/headers/map.hpp
+++ b/headers/map.hpp
@@ -175,9 +175,10 @@ private:
 
 	// BBST
 	enum					{INSERT, ERASE};
-	void					_balance(node<value_type>* n, bool action);
+	void					_balance(node<value_type>* n);
 	short					_compute_height(node<value_type>* n);
 	short					_balance_factor(node<value_type>* n);
+	short					_balance_f(node<value_type>* n);
 	node<value_type>*		_rotate_left(node<value_type>* n);
 	node<value_type>*		_rotate_right(node<value_type>* n);
  };
diff --git a/templates/map.tpp b/templates/map.tpp
index e0e088c..69e1b17 100644
--- a/templates/map.tpp
+++ b/templates/map.tpp
@@ -176,7 +176,7 @@ MP_TPL pair<typename MP::iterator, bool> MP::
 	next->up = n;
 	_size++;
 
-	_balance(n, INSERT);
+	_balance(n);
 	return (ft::make_pair(iterator(next, _sentinel), true));
 }
 MP_TPL typename MP::iterator MP::
@@ -238,7 +238,7 @@ MP_TPL void MP::
 	_allocator_node.deallocate(n, 1);
 	_size--;
 
-	_balance(replace, ERASE);
+	_balance(replace);
 }
 MP_TPL void MP::
 	erase(iterator first, iterator last) {
@@ -417,7 +417,7 @@ MP_TPL typename MP::allocator_type MP::
 	 * private functions :
 	 *********************/
 MP_TPL void MP::
-	_balance(node<value_type>* n, bool action) {
+	_balance(node<value_type>* n) {
 
 	node<value_type>*	old_n;
 	node<value_type>*	parent = NULL;
@@ -425,20 +425,25 @@ MP_TPL void MP::
 	while (n)
 	{
 		n->height = _compute_height(n);
+//		n->height = _balance_f(n);
 
 		if (_balance_factor(n) > 1) // Left Heavy
+//		if (n->height > 1) // Left Heavy
 		{
 			parent = n->up;
 			if (_balance_factor(n->left) < 0) // Left-Right Case (BF == -1)
+//			if (n->left->height < 0) // Left-Right Case (BF == -1)
 				n->left = _rotate_left(n->left);
 			// Left-Left Case
 			n = _rotate_right(n);
 			old_n = n->right;
 		}
-		else if (_balance_factor(n) < -1) // Right Heavy
+//		else if (_balance_factor(n) < -1) // Right Heavy
+		else if (n->height < -1) // Right Heavy
 		{
 			parent = n->up;
 			if (_balance_factor(n->right) > 0) // Right-Left Case (BF == 1)
+//			if (n->right->height > 0) // Right-Left Case (BF == 1)
 				n->right = _rotate_right(n->right);
 			// Right-Right Case
 			n = _rotate_left(n);
@@ -451,23 +456,11 @@ MP_TPL void MP::
 				parent->left = n;
 			else
 				parent->right = n;
-			if (action == INSERT)
-				break;
-			else if (action == ERASE)
-				parent = NULL;
+			parent = NULL;
 		}
 
 		n = n->up;
 	}
-
-	if (action == INSERT)
-	{
-		while (n)
-		{
-			n->height = _compute_height(n);
-			n = n->up;
-		}
-	}
 }
 MP_TPL short MP::
 	_compute_height(node<value_type>* n) {
@@ -481,6 +474,18 @@ MP_TPL short MP::
 	else
 		return 1;
 }
+MP_TPL short MP::
+	_balance_f(node<value_type>* n) {
+
+	if (n->left && n->right)
+		return n->left->height - n->right->height;
+	else if (n->left)
+		return (n->left->height + 1);
+	else if (n->right)
+		return (-1 - (n->right->height));
+	else
+		return 0;
+}
 MP_TPL short MP::
 	_balance_factor(node<value_type>* n) {
 
@@ -508,6 +513,8 @@ MP_TPL node<typename MP::value_type>* MP::
 
 	n->height = _compute_height(n);
 	ori_right->height = _compute_height(ori_right);
+//	n->height = _balance_f(n);
+//	ori_right->height = _balance_f(ori_right);
 
 	if (n == _root)
 	{
@@ -532,6 +539,8 @@ MP_TPL node<typename MP::value_type>* MP::
 
 	n->height = _compute_height(n);
 	ori_left->height = _compute_height(ori_left);
+//	n->height = _balance_f(n);
+//	ori_left->height = _balance_f(ori_left);
 
 	if (n == _root)
 	{
diff --git a/tests/main.cpp b/tests/main.cpp
index ac6c4c4..06f15e6 100644
--- a/tests/main.cpp
+++ b/tests/main.cpp
@@ -4,35 +4,35 @@
 int	main() {
 
 	// VECTOR
-	tests_vector_constructor();
-	tests_vector_operator_assignation();
-	tests_vector_begin();
-	tests_vector_end();
-	tests_vector_rbegin();
-	tests_vector_rend();
-	tests_vector_size();
-	tests_vector_max_size();
-	tests_vector_resize();
-	tests_vector_capacity();
-	tests_vector_empty();
-	tests_vector_reserve();
-	tests_vector_operator_access();
-	tests_vector_at();
-	tests_vector_front();
-	tests_vector_back();
-	tests_vector_assign();
-	tests_vector_push_back();
-	tests_vector_pop_back();
-	tests_vector_insert();
-	tests_vector_erase();
-	tests_vector_swap();
-	tests_vector_clear();
-	tests_vector_get_allocator();
-	tests_vector_swap_non_member();
-	tests_vector_reverse_iterators();
-	tests_vector_relational_operators();
-
-	// MAP
+//	tests_vector_constructor();
+//	tests_vector_operator_assignation();
+//	tests_vector_begin();
+//	tests_vector_end();
+//	tests_vector_rbegin();
+//	tests_vector_rend();
+//	tests_vector_size();
+//	tests_vector_max_size();
+//	tests_vector_resize();
+//	tests_vector_capacity();
+//	tests_vector_empty();
+//	tests_vector_reserve();
+//	tests_vector_operator_access();
+//	tests_vector_at();
+//	tests_vector_front();
+//	tests_vector_back();
+//	tests_vector_assign();
+//	tests_vector_push_back();
+//	tests_vector_pop_back();
+//	tests_vector_insert();
+//	tests_vector_erase();
+//	tests_vector_swap();
+//	tests_vector_clear();
+//	tests_vector_get_allocator();
+//	tests_vector_swap_non_member();
+//	tests_vector_reverse_iterators();
+//	tests_vector_relational_operators();
+//
+//	// MAP
 	tests_map_simple();
 	tests_map_constructor();
 	tests_map_operator_assignation();
@@ -58,14 +58,14 @@ int	main() {
 	tests_map_get_allocator();
 	tests_map_swap_non_member();
 	tests_map_relational_operators();
-
-	// STACK
-	tests_stack_constructor();
-	tests_stack_empty();
-	tests_stack_size();
-	tests_stack_top();
-	tests_stack_push();
-	tests_stack_pop();
+//
+//	// STACK
+//	tests_stack_constructor();
+//	tests_stack_empty();
+//	tests_stack_size();
+//	tests_stack_top();
+//	tests_stack_push();
+//	tests_stack_pop();
 
 	// execute tests and print them :
 	int size = test_list.size();