Ive been drifting for 7/8 years so am probably a bit more used to the ole sidewaysness than most.
The first thing I do when I get in is turn the TCS off - IMO when you are pressing on its more of a hindrance than anything as it changes the balance of the car when it kicks in. The braking on the front wheels is a horrible, horrible thing and if I knew how to stop it I would, if you are right on the limit you dont need more load on the outside wheel all of a sudden.
That said, I wont let the missus drive with it turned off at all