2nd the advice to nail it from the get go. Some instructors will keep asking you to shift way too early (protect car from repeated thrashing) but I've just ignored it when that's happened, as long as you're not driving dangerously there's very little they can do.
Short-lived but excellent fun!
Going with my dad for a track day at Dunsfold Park, Cranleigh. Just him driving.
Any tips, tricks or general advice on getting the most out of it?