12-09-2015, 07:42 PM
If your rotor feels like a scallop shell the pads are not going to contact it all the way until you break them in completely. Idling the wheel on the rear stand is inherently sketchy. Wave rotors can crack. For front rotors I try to be as resourceful as possible. Rear rotors I buy brand new. A Dedicated 4 piston to me feels awesome. I have never liked my idle above 2 grand or an aftermarket set of pads. Your pistons could have a bunch of crud on them. And, if one is seized the others get the energy. Book says to coat orings with brake fluid, I use silicone grease.