I couldn't do it as fast as those guys, but I'd certainly give it a go. What a track. If you're into this have a look at the Maxi and the Mega. Only the insane need apply, a few years ago I may have given it a shot.
OK you boys in the Rockies may have some of the best mountain biking in the world, but you don't have the mega - this is sheer insanity, I would have attempted this... 20 years ago -