You should do that on skis and name it after yourself. If you're trying to do a misty, try doing more of a front flip/spin thing
you're like going more back with it or something
there are two reasons why you are doing that instead of a misty.
1. you aren't committing your head. you are keeping your head up, throw your head down from the beginning fo the trick and keep it going DOWN.
if you don't make it happen, you'll spin on your side.
2. you are whipping your body around too much. you are throwing it alot before you are even off the ground, causing you to get all jacked up.
Think about jumping up (vertically) and then do the trick. So don't lean too much on one foot before you are off the ground.
Just trying to help you out. Wish I could use tramps like that.
Anyhow, I like the trick