So I remember a while back there was a way to do flips of your flying mount, well I accidentally discovered an easy way that doesn't move your camera so you can easily see your own flips.
http://i206.photobucket.com/albums/b...908_080940.jpg
Just go to key bindings and at the very bottom before your addon bindings, is a section called Vehicle Controls. Go to pitch up and pitch down and bind them to something like you mouse wheel. Than fly, scroll and enjoy.
Sorry for the bad picture, kinda hard to pic that kinda thing.