I have been using ceramic brake pads and drilled/slotted rotors on my 2000 Accord for last 40,000 miles. Now the rotors look like they are wearing unevenly, kinda like when rotors get grooves in them.
- ever had problems using ceramics on drilled rotors?
I read in the Summit catalog that with Powerstop's rotors your only supposed to use semi-metallic pads , now I'm concerned.

 

If the ceramic pads are manufactured with good quality control they would not be the problem. Dirt getting caught under them could.

I've been using Brembo slotted rotors with a set of carbon/kevlar brake pads for 5 years now. The slotted rotors have an advantage over crossdrilled.
The cross-drilled vent gasses, while the slotted not only vent gasses, but self-clean as well.

The differences are this:
The cross-drilled rotor's vent holes all line up, promoting grooves (uneven wear).
Slotted rotors locate the slots so as to progressively sweep across the brake shoe's surface as it passes. The trailing edge of the slot effectively acts as a scraper, keeping the shoe clean. Because this takes place across the entire face of the brake shoe, even wear is promoted.

P

 

Slotted rotors can either clean the surface of the pad, or it can help disperse the dust, depending on which way the slots are running across the pad.

If the outside edge of the slot contacts the pad first, then it's cleaning the surface of the pad. If the inside edge contacts first it's letting the dust escape outward. Cutting shortens the life of the pad probably about as much as the cross-drilled rotors do.

 

Thanks guys

 

Not a problem

P