Thanks so much John. Now I have a much better idea. The car is set to GT-2 specs, four corner balanced and I haven't increased the toe in beyond the GT-2. the front end is about as low for now as I want to go (still driving on street , too). I've also been running the cold pressure 32f and 38r and my tread temps across all 3 zones have been good. I'll be DE/club race combo next weekend (what a treat) in SC and I'll play around with rear setting on shocks only (one variable at a time) and compare the sweepers with the quick turns. Thanks so much.