I have gone up the MMWT during Whitney Prime Time (the 4th till Labor Day) once in the last 10 years...down is another story, because it is not a wilderness experience.

My quota season trips start elsewhere, usually in mid to late September, so I might have a wilderness experience on my way to the Smithsonian Hut. In 2006, 3 people between NAP and Lower Trail Crest during that year's Whitney Trip...and about 2 dozen deer. Last year, less than a dozen folks between Bullfrog Lake and LTC.