Yea, there are three files to choose, the factory tuning and two custom tunes.
When I got it, the thing was an absolute dog. I don't think it woulda outrun a stock truck by much, if any. I got to nosing around and ended up in the custom tunes, and saw that one of the custom tunes was selected. I raised the rail pressure and it ran a LOT better.
You can change fuel stretch (timing) as a percentage, rail as a percentage, percent of TPS where it adds pressure and when it reaches max pressure. I think theres a couple others.
My biggest issue was the pressure; my truck never has liked pressure for some reason, and it would buck and surge, pop out the stacks, and throw the high rail code cruising at 65. That was mostly on the custom tuning I did, but some with the factory tune. PL5 was a good all-around level, and TNT on 5-9.
Adrenaline/Smarty TNT is stronger than TNT/Dr.P by quite a bit (butt dyno). The all around driving is improved, seemed to be more linear, where Smarty is kind of soggy right off idle until it starts seeing boost, the Adrenaline made it jump. Hard to explain, but hopefully your pickin' up what I'm puttin' down.