Before I say anything, yes I've searched this, yes I know there's other threads, but I feel like I really am only going to be able to commit if I have specific advice.
So last season I really progressed my rail skiing and was doing solid 270s onto boxes and from the middle on flat rails. This year though I feel like it's really time to nail them down for good and start bringing them to down rails.
The hardest part about the trick is that I can't visualize myself doing the trick. I feel really unsure about what to do with my legs when I'm popping to spin. How much do I pull them up? What angle should I approach from? How do i prevent slipping out? These are my initial concerns and any help would be appreciated here.