i have 500mi on the new ones so if they arent broken in yet then i dont know if they ever will be and i ride pretty hard....i think maybe in a track setting you may be able to tell the difference but on the street,probably just as good with stock rotors,i believe the advantage of the wave rotor is to shed the heat from constant hard braking,this really doesnt happen on the street,but hey,they look good and i needed to replace the ones on there anyway