on that snowboarding crapneto site, they have a video of a guy on a c-box who just keeps spinning, that waas insane. Then there was one on a falt box were the boarder grabbed the hand of another guy and spun him, he did like a 900 or 1080 on the box, no spins on or off, well off was a 270...it was nuts tho.
http://crapneto.com/video_bob/batontwirltwist.mov