well, regarding all the very useful information on Diamox, i think i probably will never take it again! I have never had any major high altitude effects, and i thought it would help...i still may try doing a November "day" hike of Mt Whitney, only if there is either no, or little snow, and if the weather is good. I was just hoping to get back there, this year..somehow. I live about 300 miles from the portal, so showing up in the hopes of getting an unused permit, would be quite a risk, for that long drive. My thought: day hike, travel light, no diamox, maybe stay at the portal 1 night, and see what happens...is the portal even open that late in the season...???
