Originally Posted by nodnerb
First off, how tall are you? That's a huge frame. If your frame is too big it will make all the things you listed harder to do.
If he is riding a 22" Hoss, I can only assume he has the body mass to back it up... if you are big enough and have enough strength, the bigger frame won't really matter... much.
I wrote a guide to bunnyhopping here on this forums, check it out.
As for wheelies, there is a thread for that too.