Chevy,
How big is the tune that you tow on? I would assume it is a somewhat milder one as from all the research I have been doing has told me to avoid shifting at low rpm where the major torque curve is, thus the TCM tuning?! My theory is this may even help the built motors last longer, at least the ones breaking the cranks and suffering from crank walk, main movement, etc. I plan to turn the truck down as much as possible the majority of the time when not competing, or racing buddies, etc. I am thinking with the setup all the way turned down it will probably be around ~600-700 rwhp hopefully which will be perfectly ideal for the street anyways and should outrun 99% of the trucks in my area at that level anyway.