In reply to all : Yes was superb day thanks.
Blanchie, best of luck mate, I know you are flying out tomorrow, fingers crossed for some good weather and conditions for you and the guys.
Regarding the crowdedness of the route, for sure it was busy but we only got held up at the start and at the lower Moseley slab really. However we ended up sharing the summit ridge with about 15-20 other people !
Grade of the lower and upper Moseley slab ? I'm sure there are others on this site with more experience than me to accurately comment. Remember you are in big boots not rock shoes. Both I think are graded UIAA III- which equates to VD grade. However they are at 4,000m but there are bolts, wires and places to protect. Personally I found the lower harder than the upper slab and going down harder than going up but I'm not very good ! Cheers