Hi Steve, you are absolutely right. That's a good point. I did a combination of both..spending the night at Whitney Portal and Outpost Camp, plus Diamox. Prior to Whitney and Diamox, I did experience AMS when I went to Cloud Rest (that's below 10k). Found out about Diamox in this forum, talked to my doctor and tried it at Mount Dana (13k) and what a big difference.
*disclaimer: others might react differently to Diamox.
