Thanks!
It's always challenging to get good photos on these trips because I already have a lot of things to keep track of for survival and I'm at my cardio maximum for much of the day between climbing, skiing, and the altitude (lowest was about 11k that day, highest just over 14,000').
I've found a user preset with the right settings (ISO 400, AF-C, f/10, +1ev, Av mode) helps a ton. I can just compose and fire away and know I'll most likely be stopping the action with a reasonable exposure.