what else can we expect from you except total commitment in not letting anyone pass you

Side walls on the tyre is really down to the pressures you are running and the adverse camber set up, if you were runing the H&R PSC system maybe you could of eased the problem with the tyres, but side wall strength is more with the Bridgestone AO48.
Hope the car is back on the road and it doesnt put you off flying the flag for the RS4 on the track.
Cheers
jr