13329671:Mingg said:If you're hopping over the rail that means you're carving into it too much. Also you're slipping out because you're too far on your back edge. Try to keep your weight 50-50. Or try to think of it more of 60-40 so you aren't slipping out.
Also if you get completely 90 and look at the end of the rail and try not to lean too far on your toes you should be able to lock on pretty well.