Why is it that some ppl say GSD3 are great , and other say not so good as old GSD2's, also with the quattro, does any1 get understeer with any other tyre than the MICH Pilot sports, as i get this sometimes when pushing them round corners, does this happen with GSD3's or any other tyre, not sure if its the way the quattro is setup or wether its the dam tyres i got, lol, plz help!! 245/45/17 is whats on at the mo.