I will also say that you will likely please more customers when you tune the trans to put you at too high of a gear at a low rpm with the ability to take out gears as needed than to tune it to put you in too low of gear at high rpm without the ability to force it into the next gear. I have had tunes with both of these extremes on my truck before my trans was tuned on the dyno to how I wanted it(or at least as close as I could get it). While the tune that left me in too low of a gear/high rpm was great for towing, it was horrible to drive in unloaded. The tune that put me at a higher gear/low rpm was better unloaded, but horrible loaded. However, at least I had the ability to take out gears as needed when loaded unlike the other tune.
