At this point I'm shooting for Wed night @ Trail camp and summit on Thurs via the Chute, Trail crest and west side trail.
I've got the Scarpa Charmoz, which is the equivalent of the Trango. It seems all the Sierra guides wear the Trango. (I tried them but they are too narrow for my feet.)
UBSL is @ 11.2k - it may have some water available. Iceberg, however, is at 12.6k, and was iced over last year on May 30. I remember carrying a few liters of water from our camp @ UBSL on summit day.
Iceberg, 5/30/15 
Trail camp is @ 12.1k, so I'm looking at carrying some water from Outpost rather than spend a lot of time boiling. At this point, I think I may carry 3l and put it aside to ensure I have what I need on summit day. I figure I can boil/look for run-off on the day/night prior, and deal with getting water once I return.
