They say you don’t need it
You don’t NEED to tune the transmission
Great minds think alike!
To be clear, it is not needed at the Stage 1 power level from a safety/driveability standpoint. I don't think anyone disputes that tuning the TCM is better than not tuning the TCM. If TCM tuning is a priority for anyone, and they need it immediately, I would not recommend the Accessport. If you can holdout and in the meantime enjoy some increased power and, in my opinion, some worthy features, the AP is the way to go!
4.2 is pretty quick! When I get some time with a truck I'll slap the vbox in there and see how it does 0-60.
Kyle@COBB