Acclimatization is my only hope.
Not to be picky, but it is actually it is the
best hope, better than Diamox anyway.
The official definition of threshold of altitude illness is "only" 8,000 ft.
In my family, two can just go, but two need those extra nights around 8,000 before they can get over 11,000.
BY THE BOOK (and some need even more conservative schedule, beginning at 8,000 ft rather than 10,000)
- you should spend at least one night at an intermediate elevation below 10,000ft
- above 10,000 feet, your sleeping elevation should not increase more than 1000-1500 feet per night.
- Every 3000 feet you should spend a second night at the same elevation.
http://www.ismmed.org/np_altitude_tutorial.htm#goldenrules
