Oh yes I agree fully with the snap on Medium TC which is why I don't use it. Saying that I have noticed that running it in TT's is much harder (due to the ers deployment during corners) compared to using it in multiplayer it seems runnable... I've used it a few times in 25% races and it runs okay, I think I was still slightly slower but haven't had any snaps or spins.
My point was that you can still be quick using full Tc. I use it as a safety net really as in I still drive like I'm running medium Tc with my throttle inputs so as not to engage it as much as possible but if I do get a little heavy footed in a race I know I'm not going to lose the car🙂