To get the most, be in everything he wants the team to do, dont hold back, try all he asks.
Get there early so you can practice the day befors lessons, helps. Rig set up is critical.
Even to the point I was unhappy with sail performace day two, he walked past as I was considering a sail change, glanced at set up, and said "more down haul, your settings are wrong" . By more downhaul he ment 10mm!!! He was correct of course. I couldnt believe by walking past and glancing, that he could pick a 10mm differance between good and bad rig set.
Take a cold shandy for when you knock orf

each day, lots of fluids and snacks to keep you going. You will be buggered, but happy with what he delivers. One of the nice guys in the sport.