That was mine. It seemed to throw my timing out of whack. But I do not believe it to be the TT fault. I have ALOT of crank endplay and think I was getting a weak CPS signal due to the crank/reluctor walking away from the CPS. Routing it through the Timing Tuner just made it worse. However...when I wasnt having that problem....it worked well. I dynoed 707 rwhp with one. We used one on Vinces car and it worked very well...no problems at all.
Be sure to buy one with the updated window switch.
I think the problems some where having were mostly due to CPS signal problems and not directly due to the TT. And I know of two....me and Country Boy.
2004 Z06 Commemorative Edition Corvette Bone Stock...for now