In reply to maxsmith:
Me and the other half were climbing the other day by setting up an anchor and sitting her on the edge of rock, (I Have 60m rope).
She would be anchored to the trees/ rocks and the other end of the rope lobed off ready to belay, loaded her belay device ready as well. I then pulled up a chunk of rope tied a figure 8 and cliped it to the powerpoint and would abseil down.
once at the bottom I would tie in to the end of the rope and she would unclip the figure 8 and be ready to belay me back up. Once im at the top we swapped over. It was really efficient and saved loads of time as the scramble down was almost as bad as the climb up.
Steve
Edit: we had 60m rope for a 25m climb which left 35m at the top to build anchors and faff with.
Post edited at 11:31