Quote Originally Posted by ed325its View Post
Porterfield. Have always used them and they have an SCCA discount.
What compound do you use? I always loved the R-4S for track days and was about to switch to the R-4E when I sold the car I was tracking and bought the racecar.

The racecar came with a lot of carbotechs and hawks so I used them, but never liked the feel as much as with the porterfields. But all of the racers seemed to agree that the porterfields didn't hold up to wtw racing so I've never had the nerve to try them.