Thought I would revive this thread for a quick question...
What's people's preferred method for climbing as a group of three on BBB? When I'm in a pair, I normally do BBB with a single and tag line to pull the rope on the abseil. However I'm assuming that one rope length (60m) is not enough rope to get two seconders up some of those pitches, and on the first few pitches especially I can't just lower the rope end back down to the next seconder...
So just take two singles and have them each on their own ropes belaying via guide plate? And on the lower pitches and the cave pitch, clip both ropes into separate draws hanging from the same bolts on the traversing sections so they don't pendulum?