PSM drive me crazy in those situations (OK, always). After decades of knowing exactly what to do the dang car now takes away my throttle and starts to brake (abruptly) various corners of the car. It usually ends up making the turn even tighter than anticipated if you try to help at all. Best thing I can think of is to turn off PSM as soon as you start the car and then drive the car as intended. PSM can make a nice drift turn into a herky jerky turn that makes you look like a you just started to drive. No thanks, I am less likely to lose control when my car is not deciding how I should drive.

I guess my answer is turn PSM off and then steer/brake or steer and throttle as appropriate. Don't think anyone here need lessons on how to handle understeer or oversteer by now.