@Salkin
Thanks for the explanation, drove since two years 417-418 and have always fitted the blocks the wrong way, so that always other results came out
I must say that my swapped blocks were not as bad. Last time I drive in Front B-XB and in Rear A-D. Good Grip and fast time.
Now it's time to go out and Win with the new experience
Shame on me a bit
Done my Setup ...