[EvilChief]

glazing happens to any type of rotors, occures after heavy and long braking such as towing a trailer or mountain driving mainly. rotors need to be machine to remove glazing, at the same time the pads get a light sanding to remove any grooves and uneven wear. glazed rotors reduce braking performance and encourages queeling.

just imagine having friction between tyres and a dry road and friction of tyres on a wet road, same principle.
oh and good luck with the emry paper over the rotors u will be there for hours and if they are warped wont do a difference, we only emry the rotors straight after machining them to give it some texture and eliminate any possible sqeeling, but we only give it a quick and very light hit while its still rotating on the bench