What about this idea? Maybe even a longer Prussik so that you can kind of pull up the aider as your making the last step up into the WE step and unhook it to then ba able to hook it to the next WE step.a bigger carabiner is needed.and better rope for prussik. Just a test run.
View attachment 15743
that awesome. eliminates the noise from metal to metal and puts you a bit away from the tree. ill try this with a fifi hook and paracord to pull it up. what size rope are you using here?
i tried using the fifi hook on the bottom pick part, but it seems just a little too close to the tree. had a scenario where my aider fell