I don't know about the pipe. I've talked to people who have done it and the general consensus was that there was one sketchy IV+ and rest was just high speed floating. They said they wouldn't do it again. I've never personally looked above the standard put-in but if I can get ahold of these guys, I'll get more details and post.
"The world would be a better place if everyone kayaked."-Brad Ludden (Valhalla)
"You only get one chance to run a drop blind."-DD