I was thinking about getting DS2500's for my R32 with R34 Gtt brakes and found the cheapest place was Race Brakes at $265. The guy there Howard talked me into getting some endless pads. SW03's I think. More expensive but better for the track and on the street according to him. After my first session on monday my wheels were covered in dust. but that was hard braking after a warm up period. That might be there shortfall and I'm thinking about getting RB74's down the track for driving around on the road, not that I do that much though...