diff --git a/Implementierung/main.c b/Implementierung/main.c
index 2ea9ffd..4089666 100644
--- a/Implementierung/main.c
+++ b/Implementierung/main.c
@@ -45,8 +45,6 @@ void benchmarking(size_t benchmarking_amount, int version_to_use, float complex
             break;
         case 4: // Uses highly optimized SIMD
             printf("Benchmarking V4 - optimized SIMD implementation\n");
-            tricorn_implementation = tricorn_V3;
-
             tricorn_implementation = tricorn_V4;
             break;
         case 5: // Experimental cleanups and inlines / for testing
diff --git a/Implementierung/tricorn.c b/Implementierung/tricorn.c
index 5aa7299..2620a48 100644
--- a/Implementierung/tricorn.c
+++ b/Implementierung/tricorn.c
@@ -41,13 +41,13 @@ void tricorn(float complex start, size_t width, ssize_t height, float res, unsig
 
     // Calculating the threadcount so that it is limited to a reasonable distribution where thread starting doesnt outway calculation cost
     size_t thread_count = get_thread_count();
-    if(height >= min_rows_per_thread)
-        while((height/thread_count) < min_rows_per_thread) thread_count--;
+    if(abs_height >= min_rows_per_thread)
+        while((abs_height/thread_count) < min_rows_per_thread) thread_count--;
     else thread_count = 1;
 
 
 
-    const size_t y_step = (height+thread_count-1)/thread_count;
+    const size_t y_step = (abs_height+thread_count-1)/thread_count;
     const float start_r = crealf(start);
     const float start_i = cimagf(start);
     const float directional_res = (flipped ? -1.0f: 1.0f)*res;
@@ -64,7 +64,7 @@ void tricorn(float complex start, size_t width, ssize_t height, float res, unsig
     for(size_t i = 0; i < thread_count; i++){
         compute_args* args = malloc(sizeof(*args));
         args->start_r =start_r;
-        args->start_i =start_i-i*directional_res*y_step;
+        args->start_i =start_i+i*directional_res*y_step;
         args->start_row = i*y_step;
         args->stop_row = abs_height < (args->start_row+y_step) ? abs_height: (args->start_row+y_step);
         args->consts = consts;
@@ -176,8 +176,8 @@ static void* compute(void * vargs){
                 c->img[position + 2] = ((value*5) % 255);
             }
         }
-        c_imag -= vertical_step;
-        c_imag_vector = _mm_sub_ps(c_imag_vector,vertical_step_vector);
+        c_imag += vertical_step;
+        c_imag_vector = _mm_add_ps(c_imag_vector,vertical_step_vector);
     }
     free(args);
     args = NULL;