in this configuration having weight on both sides of the friction somehow reduces the twisting. whereas a climber descending with figure8 chest level will send out unweighted slack into a pile of knots.
it twists. but it really doesn't though. doesn't seem to on the ground, but tidy crew so maybe. i think friction above and not at the end weight of the piece keeps the rope from rolling instead of unweighted slack squirting out like spaghetti
walking this through: if there is a lot of slack and then the right gyrations, the wrap could reform into a girth hitch and lock the entire thing up. hmm. in your experience and what you were taught, does this actually happen, is it just theoretical or at what frequency? in the configuration in...
there's things you can do with a figure8 besides rappelling off the spar rigging rope (which was the only time I saw another climber using one). It can be used for srt as a redirect or as a "soft 8" style canopy anchor. I guess folks commonly do light rigging off harness in place of s munter...
correct, it's almost impossible go pull the rope back up without unlocking the figure8. Having the ring connected next to it is quick and easy. downside is you have to be next to the rigging point to reach it.
meant to mention: rigging rope pressure from ground causes the ring to squeeze onto the figure8, kind of dynamic mechanical friction. I think you can add more friction too.
haven't seen this previously. orientation seems to matter. figure8 on sling first, then ring, rigging rope from groundee through outside of ring, rigging rope to cut piece between ring and figure8. add an expected wrap through figure8 to add canopy friction. un flook the rope off the figure8 to...