If you're thinking about spending the $$$ for a T56, you might consider a TKO-II. Stronger than the standard TKO but a lot less $$$ than the T56. I think they're around $1800 new. Check this site out for some more advice:
www.hanlonmotorsports.com
Call Bob up and see what he has to say. He's switched to a G-force in his racecar but I think he's still the king of tremecs.