California Superbike School??
I've just posted about it on another thread... I done level 1 and 2 this year - had a great few days, learned a lot and was great fun.
I was at Silverstone.
the day gets spilt between classroom work, then on track drills putting into the practice the classroom theory... I think it was 5 track sessions, about 15-20 minutes at a time.
it's a smallish track, and you don't ride fast (not allowed to use brakes for most of it) but there are plenty of different corners, and plenty to practice.
if I've got what CSS means wrong, then ignore the above!