I continue to have issues with my Xcal2 tune and what I call an unusual shift from 2nd to 3rd. All other shifts are normal...Since the V8 and the V6 (what I have) use the same automatic transmission, I thought I'd ask here rather than in the V6 specific forum. There has been at least one other user on the SCT forums that has seen the same thing (also V6 automatic, AND same dealer for tunes). Do any of you notice a "kthunk" sound when the car shifts from 2nd to 3rd? It both sounds and FEELS different. Stock doesn't do this... I've asked for help from my dealer--it's been a week and a half so far, and the last I heard was that they were "working with a Ford engineer." I also asked for help from SCT directly---that was on Monday, but so far--they haven't come back with any suggestions or tweaked tunes. It's apparently not the torque reduction/control---they made me a tune with this restored to "stock" and it still does it, on the shift from 2nd to 3rd. Does anybody else see this??? I've had my Xcal2 in hand for over 2 weeks now--and it's not living up to my (reasonable) expectations.