Ethan,
Yes, you are right. The biggest problem was the right part of the track, specialy the shicane onto the straight. But this was caused of the bumps which were directly in the Center of the corners so the Car went strainge sometimes when I went to hard on the throttle.
I had to find a compromise with the rear shims. I could put more in, than the rear was save in the right part but to save for the left :-P in the end I ended up with that setup and just tried to drive it easy on the right Part.
Freddy