Kennedy is a ripper for sure.
On a side note, I was in SF this past weekend, and was right by the flowershop, that hill John Fitzgerald rolled down last year is fucked beyond belief. All of the shit they did into it was pretty gnarly. I wouldn't be surprised if he did the whole hill because he got carried away with the speed right away.
I also saw the hill Kennedy halfcab flipped into again, and stand by my word on the gnarliness.