[Nick 95 6sp]

I use Carbotech pads ...XP10's now, prior set was XP8's, and I really like them a lot; no fade at all even on the track after repeated hard braking from above average speeds with a heavy car (Supra weighs over 3500lbs).

I think the main reason Carbotech strongly advises to use their pads on fresh rotors and then bed them in properly (most high performance pads need to be properly bedded after installation) is because they are ceramic compound pads, so the layer that forms on the rotor from other materials is not "compatible" with the ceramic pads; if you had other pads and are keeping the rotors, they should be turned/cleaned up to remove the old surface.