Hi Julie,
Apon arrival at 10:00pm, we drove up to HorseShoe and camped overnight. The next day, I got a walk-in overnight pass (for that day), so we started at about 6:00pm and hiked until sundown and camped at around 10k. The next morn, we summited and slept on Whitney that night. The next day, we returned to Lone Pine (to drive to Death Valley)
I never felt a single twinge of AMS. I have experimented a bit with Diamox, but I found that sleeping at altitude worked pretty much by itself (and I could easily do without the inconvenient pit stops)
