Originally Posted by LM3
Stoptech Street Performance & slotted rotors was by far the best combination I've tried with my stock setups.
If you're running at a track that's hard on brakes then I'd suggest you go with the recommendation above and use some real track pads (not the dual purpose stuff). One track near me (CMP) is notorious for being hard on brakes. I can fry a stock set of pads in one day, track pads will use 50% of the pad material in 2 days.
Not sure why you are having such trouble with rotor life unless you're not really wearing out the rotors but having pad material deposited on the rotors which will give you a pretty strong steering wheel judder. The only place I've experienced that is Road America after 4 days of track sessions using track pads (Pagid RS19s) and within about a week of street use, rotors were back to a smooth surface. Ask your friends at the track and see what they say.