ISSA - International Slalom Skateboarding Association

I filmed a friend of mine with a small photocamera (Canon Ixus) and made a quick edit.
http://nl.youtube.com/watch?v=sR6el7MNBes
We usually go slalom-snowboarding, we don't have much experience with skateboarding but I think he's pretty good. Tell me what you think.

Come and join us on one of our practise sessions.
I think it's impressive what he does on such a long board.