My local, Gloucester dry slope, has had a load of money put into it and one of the new purchases is a huge air bag with a nice kicker going into it. Its out most nights so is pretty sweet. If anyone ever heads that way pm me and i'll probably be up for a sesh!
mmm, you might be right about the kicker but they're are still good for spacial awareness and getting comfortable with new flips and spins. I can say there's a few tricks that I've learned by using an airbag.