The solution to your problem?

Sell your car and buy one with a manual! I've definitely had a few times where I shifted hard into second and tct ctrl was blinking and you could feel the rear end get squirely.

I'm going to side with "doc" on this one. You're driving a mercedes which is a generally a very conservative brand when it comes to how systems are calibrated. Just look how sensitive the tct ctrl is and how stability ctrl can't be fully deactivated.