I changed the paddle shifters to remain inert in "manual mode" unless they're touched, so the transmission would continue to shift on its own and I could tune things more aggressively to be more of an all-around "sport mode".
Bear with me: while the shifter is in "manual" and the car is still shifting for itself, the TCM is using a shift table different than normal. I thought "Awesome! I can really make this a cool sport mode with a separate shift table!" So after some failed trial and error, I finally changed EVERY alternate shift table to my more aggressive shift points. End result: no change.
What is the car accessing for the automatic shifts with the shifter in "M"??