Dave, I also help teach a Hunter Safety course here in Illinois. Can't imagine cutting the rope on a safety harness with any type of cutting tool and willlingly falling the distance to the ground. As for yet another device to carry when hunting, I think the situation could be solved by the manufacturers coming up with a safety system with a lowering device (read: repalleling) so a hunter in trouble, in his stand, could lower himself, safely, unassisted to the ground. As far as I concerned, the teaching of the use of tree stands, as they now exist, is a dangerous endeavor at best. As for good videos, I've yet to see one telling or showing how to get down from a tree after you find yourself in trouble.