Do you have a pic or video of it setup on a tree?Here are two variations on a theme.
Blue Streak on right...choked through eye
Coated Tenex [orange] on left with uncoated Tenex Prusik eye/eye...@Nick Araya spliced it for me.
I still use the Tenex version. It's so compact and it can be used on either end.
The friction device is a four bar rack. I much prefer the rack here since anyone without roping/belay training can use it. Nothing to figure out. Untie the stopper of the climbing line and the rack will function.
When I was developing this system I'd tie it for arbos and non-arbos to see if they could figure out how to do a lower. Everyone could. When I used a F8 they'd drop the load after removing the stopper way too many times!!!
I've always been scared of ANY rescue system that relies on cutting rope. There are sooooo many other options that don't involve the dangers of cutting ropes.
Cutting ropes and rescue do NOT belong in the same scenario. Cutting ropes is only for repairs or back at the shop.
View attachment 57565