Thanks for the positive remarks! On the start time, we didn't start at 7pm as the result of any great strategy. Our only thought was that we wanted to do both HD and the Nose within our week in the Valley and that we couldn't waste a minute. 7pm was the earliest we could start given our flight schedule. Also, we had ruled out waiting at the base of the wall since the spring was dry and we had to hump all our water.