So,
@Steve Connally, a couple of things I'd like to discuss. First, with the climber using two blocks in the tree, was it that he had one high on the stem, plus a second one hanging on a branch higher up and away from the stem? The idea being to try to have the block offset from the cut, with the branch tip tied, so that a big swing would be induced once the cut is complete? The idea being to try to use the weight of the branch to get it to swing way out and past a target, in this case, the fence.
This sounds like one of those instances were the Sena headsets would have come in handy, as pulling off this feat would require fine coordination between the cutter and the rope man. If I'm seeing it right, the idea would have been for the cutter to complete the cut while the rope man holds back hard on the rope, in order to use the offset block as a pivot point. Then, when the limb swings past that block, and reaches the furthest point it is going to go, the rope man essentially completely lets go of the rope, allowing it to freely run through his leather gloved hands, almost friction-free. This would allow the branch to use all of its weight at full steam to throw itself laterally as far as possible.
The dangerous part of this operation would be holding back the weight initially, as it would put a lot of sideways stress on the stem.
This is my guess as to what the climber was trying to do, but if you don't have really effective communication, or at least have spelled out the gameplan in advance of the attempt, it would be hard to pull off.
Any time either I or someone who is helping me stands a chance of having a rope running in between their hands, I insist on the wearing of leather gloves. What I really would like is something that probably doesn't exist, which is a thin, soft, supple, heat resistant liner glove that could be worn inside the leather ones.
The sticky, inexpensive climbing gloves that I get as a bonus from TreeStuff are the opposite texture of what I want when there's a chance I'll have a rope running between my hands. Leather is just slippery enough and thick enough to work well at allowing the rope to run, while at the same time providing some small amount of protection from the heat that might be generated.
In the automotive accessories section of Target stores, they used to have (& I assume still do) a board on which gloves of different types are hanging. There's one in particular that is really soft, brown leather, fairly thin and easy to work with. I'll try on several pairs, because I'm looking for the ones where the ridges in the joined material do not irritate me. I usually find at least a few pairs that feel completely smooth on the inside, and therefore comfortable, for some reason. My favorite gloves ever.
Thanks for your time.
Tim
Edit/P.S. I was just wondering about whether or not it would cause a problem to just completely drop a rope and step back once the branch reaches its maximum point of deflection during the swing? In that way, the rope would be absolutely free to run as fast as it is capable of, limited only by the wraps on the bollard, and the groundie and his hands would be entirely clear of the running rope. You'd just have to make sure the rope on the ground was set up for a snag-free run.