Why can't i understand

to help you a little i think rodeos are the most easily identified even though they do kind of look like mistys. If you look on youtube that may help some

rodeo: basically tweaked backflip spinning

http://www.youtube.com/watch?v=4RHJRH5Ql7U

misty: basically tweak frontflip spinning

http://www.youtube.com/watch?v=zedlLOVnDt4&feature=related

Cork: basically spinning sideways but never going upside down

http://www.youtube.com/watch?v=pqhpH2tmQzM

rodeo has a backflippy looking rotation in it but it is thrown more to the side like lincolns. D spins, underflips, and old school back-fulls are thrown uphill like backflips. Mistys are thrown down the hill like fronts. Rodeos being to the side can be thrown more forward or back. Some peoples rodeos look about like bio because they are throwing it a little harder forward, but not enough forwardness to be considered misty.
The names aren't really that important but if you can understand what is going on in a trick then it is easier to try one.


 

backflip + spin = rodeo
frontflip + spin = misty
lean back + spin = cork
lean forward + spin = bio

your feet do not go over your head in corks and bios as they are rotations, not inversions
any off axisness in rodeos and misties happens automatically so don't worry about it