I've never owned powerstop , in 2018 I installed R1 on my interceptor sedan. 60,000 miles later and all I've done is change pads, I beat that car to death. No warp, even the anti-corrosion has held up. Glad to see others make the switch to them. One of the first things I changed out when I aquired my SHO.Old thread but figure I would throw a few additions in here.
I have had the powerstops on 2 different of my person SHO's both of them had heat warping and heat spotting. First set shook really bad after 10k. Second was starting to shake but no clue how they were treated on the second car.
Both cars ended up getting R1 rotors and pads and never had any issues with them. Ended up doing the Schwartz Engineering Caliper upgrade with the same R1 rotor and still doing solid!