From what ive read on the advice on here you guys are right, the cut and setting up for the raley is the most important bit. When i was first learning i ended up flipping like in the vid. What i found to be one of the main problem with doing a raley is your mental approach, i know it sounds weird but uve really got to want to stick it and not be scared of catching a toe edge. I spent ages flipping like that and i fond that it was mostly down to the fact that i was s**ting myself about catching an edge & you subconsciously let go of the handle. The most important thing is hold on no matter what. The reason ur flipping is the inertia of ur board moving up behind you, if you let go of the handle you the physics of it all means that the board will continue to go up and over ur head therefore making you flip.
My advice is simple, you've gotta really want to land it and hold on no matter what. Also a tip try it on a wake skate with fins then u wonít worry about catching a toe edge. Itís all psychological man.
Sorry if this sounds like a bunch of crap to everyone else but everybody has a different approach hey.