You would get some cool shots using a tripod. It would make it a lot better if there was some variety and a mix between still and moving shots.
Overall, it wasn't a bad edit at all. I'm not to sure on the titles or the font you've used at the beggining. I think simple always looks better, maybe just have some plain white or black text for each riders first shot.
Maybe try and get some filler/ non skiing stuff in there too, might make the edit seem more fun and give it a bit of an atmoshpere.
Just whenever you next get out to film try and get interesting angles on things.
Sick edit and there's some really cool stuff in there.
Go Big..and then go home.