I don't see how you guys can run stiff springs in the back and soft up front. Im running on a large outdoor track and run the softest springs in the back and the hardest in the front. Even with soft springs in the rear I have to be careful not to give it too much throttle coming out of the corner.
I also don't run a rear swaybar, max rear toe, and zero anti squat. Thats the only way I can get the rear end to hook up.