In reply to Delbiz:
Similar to setting up an anchor that you'd be happy to abseil off - eg equalise 3 or 4 good pieces with slings or static rope to a master point, plus put a rope protector where the rope runs over the edge(s), particularly if climbing on a dynamic rope.
If there are sharp edges lower down then try to place a piece (on abseil) just below & tie the rope off (with an easily untieable knot after loading) with a bit of slack above to make sure the rope isn't rubbing up & down over the edge.
I use 2 ascenders, one at chest level & one on the belay loop as a backup & put a weight on the end of the rope so it doesn't require manually feeding through.
