my set up(for track) works well ,fk konigsport coilovers ,-1.6 camber on front , poly bushes. with7.5 in wide rims with an offset to bring rims to edge of arch i found the trick is not to go to low at front go as low as you can but dont let wish bone go past horizontal ,i run the shocks harder at rear to stop under steer.. but the biggest improvement i found is getting tyre pressure set for the track,, this set up works for me but its set up for my driving style .. ive never noticed any under steer on my set up