arborjockey

True arborist work at the top speed of safe. The first person who taught me rigging techniques told me strait faced "If anyone on the ground EVER tells you to speed up. Climb down and go home". Never pull on tree with a winch while your in a tree. A good climber was killed when the cable broke, hit him in the hard and split his head. Tell your uncle to learn mechanical advantages by using ropes and blocks/pulleys(fiddleblock). You can get a more even, controlled pull.