Nice vid! Sure to help out those new to the hitch climber system with some ideas of its more diverse uses.
I use the hitch climber system and have used most of the techniques that you show as the situation called for it. I love being able to put my long rope lanyard (home made version of the Teufelberger CE lanyard) around a branch and connect to the spare hole on the hitch climber for a super quick and easy second tie in or redirect for branch walking.
I never thought of running the slack back down to the ground and getting the groundies to haul the saw back up to me after a re fuel. What was i thinking doing the hauling myself?