As you can see from the recent posts I have been using SMC and love em, they have the new 2s out 7200/90c that are supposed to be good for the SCT and at $40 you can't beat it. I know a few other recommended ProMatch. I also had a 4s SMC go bad and they replaced it np, so far my 2s are good tho.
I'd check out the new SMC 7200/90 or SPC, ProMatch, or you could try GensAce