I'd go with the T1R. Its cheeper and having much much more success at my carpet track. I also know some people who have not had a very good time with the evo III and are now running T1R's or the shaft yokomo. But to get some more information on this subject, I would do a search on this subject. I can think of atleast 2 other threads I've talked on with this exact same subject. It gets kinda old saying the same thing several times, I know I don't have to give my opinion on here, but I like too, now I'm just talkin to my self
. You would get a lot of information by checkin out some other threads on this subject.