I recently got into stunting after I saw a vid on youtube (Wipeout) and searched the internet to see if I could find some tutorials. I found this place, and then found Fugitive's guide, which I promptly downloaded and watched. It was very helpful, but I'm still having some trouble with basic stuff, such as bumps.
For example, if there's a place I want to bump, it may take me 10 tries before I finally get it right. Is this common, or do I just need to practice more? Should I be going as fast as possible, or slow, and how far back does my wheelie need to be? I usually keep it at about a 45 degree angle, and it works sometimes, and sometimes it doesn't.
