That was a long post!
If you're modifying your driving to trick the computer, you're doing it wrong. If the MDM is interfereing, you're overdriving. Maybe not in terms of track driving, but street driving. Your goal should be able to learn throttle modulation and steering input (or unwinding) because that's what you need to do to keep the car on the track....not because you need to keep MDM happy.
That last long slide had more to do with hopping the curb than traction control. If you are hopping things...you need to get your steering done ahead of time, and unwind for the "lightness" in the suspension. Your car and its gizmos have allowed you to go faster than your car control is ready for. Just get some more seat time going slower with DSC off.