Ok, so I got my slotted rotors in from PFYC and they look like they can take abuse. However, they reccomend non ceramic pads for these discs. They recommended that I use semi-metallic Hawk Pads. Do I really have to use those or is that a advertisement thing? Would it be bad to use ceramic pads on those rotors? What brakes do you guys reccomend? My ceramics on my car have about 4000 mles on them if that.