I might have to try that. I have tried girth hitching twice, running the tag end thru the loop twice, etc but i still have slippage anytime i put slack in the line. And sometimes when i go from leaning to sitting the rope will slide 6" or more and makes things really exciting. This is on oak trees with coarse bark and it still doesnt matterI've only done this once, but it seems to work great. Just girth hitch your tether, it's going nowhere.
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