The big paid sets probably won't vary much. I think he did a lot of new material at the gigs I caught ( pub in Peckham and couple of his own new material nights- called Old Rope.)
Comedians can't really do that much experimental stuff at paid gigs. Too risky. Maybe we can find out when the next Old Rope he is going to be performing at and go and see that. Or I could book him for my new night and tell him specifically to do new stuff and mess around!