well I usually clip in with the rope to both chains/rings if i was leading, then bring up who else is coming up, but then once we are already to lower off, we all clip in to both chains/rings independantly, untie the ropes, thread them and abseil off. Hope that was clear, i'm sure other ppl might have issues with that way, do it another way, and i'm open to suggestions.
but whatever u do, dont clip into only one of the bolts/chains.
Tim |