I know this is off-topic for this post, but it was offered as a suggestion...
I installed EBC 'Turbo-Grooved' rotors on my car with a new set of EBC Greenstuff pads in February. After careful break-in (about 400 miles) they were excellent! [The brakes were even good during the break-in period.] Now, my rotors are warped (not when they are cold, just after about the first couple of miles).
The car is my daily driver. It has never been raced. [I always keep the speed to less than about 95 or so

.] Wheel torque is correct, too.
Now I'm looking for a new set of front rotors. I guess it's a good time to upgrade the rotors to SVT diameter (I've been in contact with Bill Jenkins already for the caliper brackets). I don't think I can recommend the EBC rotors (especially in a warm climate, like Southern California).
Just my (off-topic) two cents worth.
Mike