Those were days when we simple tree climbers were trying like hell to figure out things the cavers had long since begun to develop. Stole a bunch of ideas from them, didn't we . You and I, Jer...and some others, not many but for sure we were not the only ones...began the journey that today's SRT equipment designers/developers have now brought to full fruition.I tried single rope technique in the early 1970s. Quite simply by tying a taughtline hitch to a single run of manila rope. My attempt failed miserably. Low and slow.
Despite the fact I figured it could be done... if by some means the friction on the hitch could be eased enough to make it run smoothly on the rope. Instead of herky-jerky, and the thought of using roller chain in the system come to mind. 30 years later Morgan Thompson's Unisender come to be. It was the incarnation of what I was imagining in the 70s.
Many variations have come about since.
In the early 80s I bought some Gibs Ascenders to reach the old-growth canopy. Although not close to the arborists methods of single line technique all of it has made dramatic improvements over the years.
Did the ninja do any SRT?
Miriam and I discuss a Busman's Holiday, post covid... I'd show you a trick or two, Cory.