I hear you bluegoat, like you know it happened to me once at the track, but my last trip at the track I was hitting the rev limiter on every gear, i created a thread here: http://www.hptuners.com/forum/showthread.php?t=32769. Made few changes, I even used bluecat's 6lxxxx spreadsheet, so far part throttle shifts work fine, but i haven't test it at WOT.