I tried this a couple of years ago Ged, but didn't have much fun! My experience of the rock quality was quite different from someone else I know however (Creamtime), so don't let this put you off.
The rock was really sandy and dusty most the way up, ball bearings and dust in my eyes. I was having a pretty hard time way before the crux, and was pretty glad when a hold snapped and I could lower off with my pride unhurt! I lowered off the peg and stuck wire which mark the crux, and think that between them they constitute a good runner. Creamtime will hopefully be along to clarify further.
