I increase the values by 80% in the "Retard vs % Torque Reduction" table and the torque increased quite noticeably. Torque now comes up early in the throttle throughout the entire rpm band like you would expect from a large displacement engine such as the LS2.
For the first time I feel like this is the setting that has been holding my car back. And setting the values to all zeros did not impress me in terms of engine response--the stock values worked better in this regard.
I no longer doubt that torque management exists. IT DOES!
Just sharing....