HP Tuners GenIII Tip in Torque By Gear

I have a 2001 8.1L Suburban It runs and drives fine but I am messing around with HP Tuners. The goal really is not a race car. Just a little homework to get better acquainted with the software. So question #1, Tip in torque by Gear. Lots of information on how to render it useless online, but no one explains the units. The Hp Tuner Definition is "Tip In Torque by Gear: Electronic throttle maximum allowed instantaneous torque increase based on automatic trans current gear." OK great, the factory tables fill the values with numbers from 8 to 20 "Torques?" and everyone puts 640 in the cells. What are the original lower numbers related too? Is it a percentage of increase over time? No info on what the values relate to that I have found, just everyone blindly sets it to 640 without much thought. This is for the early pcms with only one column, I guess as they got newer the tip in tables got more complex.

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