Just go to Fernandina on Amelia Island and fly with Keoki Gray. He will instruct you in a Pitts S2A.
1. The Pitts is harder to fly well than the Extra.
2. I've had aeros instruction with RAF CFI's. I've had civvy training in the UK, France, Texas and RSA. Flying with KG was the BEST training I have ever done because he made it all make sense. It was so good I even went back.
Google Amelia Island Aerobatics.
I think this thread can be closed now
Stik