Honestly, from my experiences from skating, its all psychological. You're subconciously scared of landing it. Going balls out and trying to land on the board is the best thing you can do.
http://img37.imageshack.us/img37/1002/statsjx.png
http://img215.imageshack.us/img215/3180/itemsm.png
Looking for rsgp only.
Im willing to go first, as I just made this account, so people don't really trust me.