The next time I have to replace my brakes, if I need new rotors, I will upgrade but I agree with you that if these Reds stop this well on the 11" rotor then I can't imagine how they would be on a 12". When I hit the brakes now I have to look behind me to see who will hit me instead of me hitting the car in front. I am amazed every day. Just when I think I've gotten used to them they surprise me. Because I also have them on the rear I can actually feel the rear "squat" a little.