That kenny clip is nuts. That hill is like straight down, one of those "only in sf" hills
If anybody has seen feed the need bonus, Dave Abair ollies over a gap to hill bomb and ends up sliding under a car... but he wasn't the first to try it. This dude Nathan Porter ollied it first, bombed out most of the hill to the point where he was maxed out, hit a weird patch of cement, lost his board, but somehow miraculously runs it out, and catches his hat, which if I remember correctly, flies off his head when he loses the board. Its in this bay area video called the focus group. Its available on Itunes and has a rare, but pretty new Walker Ryan part. Its worth checking out for sure.