I never go up Sharp Edge in anything but perfect conditions these days. If its damp at all it can be slippy. I had a nasty day up there a few years ago. Nearly fell off twice, once from in the gulley and once again on the slab. I decided to descend, tried the ridge...slippy. Dropped down to lower path...horrible, shaley and slippy. Scary day! Judging by your resultant injuries Fellhound, I'd be wise to only go up in scortching sunshine!! I've taken a few people up there and had problems too....