I'm Arpad from Hungary, and I just making a DIY camera crane. I hope I'll have time to make photos about it this weekend and will post to here. But now I have some questions about it. I'm already ready with it, only want to mod the tripod mount. Now I'm using it on a 501HDV head with the QR plate, but I want to put it only on the center columns, but I need some kind of panning bearing. Have you got any idea what can I put on it. I dont want to put on those Lazy Susan bearings, I dont like too much them. I want something like this: http://www.proamcranes.com/shop/images/D/bearing_mount.jpg