I have been tracking for about a year and a half now. For the first year (~3 events), I was driving my E92 daily driver, so traction control seemed to be very prudent. Last December I bought an E46 just for the track. Even then, I was still keeping DSC on as I learned the car. This weekend I decided it was time to ween myself off of traction control.
I ended up spinning twice in my first session with it off + some oversteering through the chicanes. It was helpful having the SoloDL as I thought I simply let off the gas through my two spins, but it appears that I was braking while turning in both cases. I avoided spins the rest of the weekend by dialing it back a bit and making absolutely sure to straight-line braking + to stay on throttle through the turns. Very humbling but good experience.
Here's a video of a few laps from my first session with DSC off. Spin is at 2:57.