There is a lot of interest in the DMM and the new Ultra O carabinas used to create this friction-hitch based, work positioning system so we've included the YouTube video from Treemagineers to show how the set-up works.
The video was produced before the Ultra Os were released (May '09) so the binas shown are standard ovals - the Ultra O's were designed specifically for this system. Talk to Drew, Matt or Johno if you want a more detailed explanation (and possibly a demo).
