DougPaul
Well-known member
Unfortunately, you either leave the sling or injure the tree unless you use a non-tree anchor. (Or maybe you should go back in the summer and retrieve the slings...)Quoted for truth (QFT). Repeatedly pulling ropes around a tree can kill the tree. Don't leave slings, either, they are trash in this context.
Of course, the rope can get stuck too! Even more trash and you don't have it for the next rappel.
Looks good to me. And, of course, anything that refers to a butterfly knot can't be all bad!Doug, this is for you: http://www.alpinist.com/doc/web12f/wfeature-dirtbag-diatribes-number-two
It covers the butterfly knot!
Doug