Broncman,
It is extremely important to plan ahead using this method. It is impossible to tie an alpine butterfly knot into a loaded line. Place these butterfly knots in your climbing rope prior to ascending the tree. You may never need them, but they are there waiting to be attached to a...
Broncman,
I should mention here that the method used for locking off the rescue line must be able to be removed from the figure eight descender when under load.
Another option would be to use a prusik friction hitch in place of a figure eight descender.
Joel
Broncman,
Climbing Arborist on YouTube has a great video showing several methods of base ties for SRT climbing.
https://www.youtube.com/watch?v=z9XpRZ-PaBA
Nick Bonner demonstrated a simple system that allows for lowering of a climber, provided the climber is not stuck in a crotch, or doubled...
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