Hi all. Who among us has done the GT500 front brake upgrade? Looks pretty simple and certainly is bigger but I wonder about actual street or track performance improvements and/or unsprung weight issues. BTW, I'm loving the GT500 takeoff wheels that I got....but let me tell you, they are heavier than stock and the ride is certainly stiffer and less lively now. I'm hoping Sam Strano's Koni shocks will mitigate this somewhat.