In reply to Ross.Cooper:
Did it as a early route of the season, 8 AM cable car from Cham,walk in do the route,leaving heavy kit at the bottom,rapple back down,could not be bothered rushing for the last cable car down ,so walked down to momtenvers and then Cham,supping beer by 9 pm.
If you want to bivvy,do it near the base,and travel light,
PS
take a few lager cams for the upper cracks,top route.