[Demandred7]

A light sprinkling of rain can be worse than constant rain because it brings out the trapped oils embedded in the pavement.

If it was on the colder side of things, the back end will kick out easily with enough input into the throttle and steering.

The combination of the two would make it seem like the back end had caster wheels on it (been there done that).

Smoother less dramatic inputs would help out to start.

Not sure if maybe a lift off over steer is what happened here as well (been there done that as well).

I'm thinking tread depth is not really the issue here.

Walk the back end out enough times on purpose in a safe environment with all of the nannies off is a good idea for practice makes perfect. You may eventually get good enough that you'll want to turn the nannies off all of the time in safe environments.

And one last thing, for the love of God people, stop calling the stability control traction control. They are not the same thing. Traction control limits wheel spin, Stability control limits car spin. They can work together, but, they can be defeated separately and do different things. And yes, I realize that VSC Sport mode deactivates the traction control while simultaneously allowing more slip angle on the car before intervening - so some buttons interact with both.