threads because I'm interested in the answer
check out 4:40
I usually like to hit it like I would a metal rail except I put more angle on my front ski, aka have your up hill edge on the front ski into the rail alot more. As you slide the rail more it will speed up and you won't have to worry about catching as much.
Also it helps to do it when it's colder out, the warmer it is the softer the wood the easier to catch.