Early permits: you MUST be UP the cables before 10 AM; you MUST be at the base of the sub-dome by 9:30. Not there in time? Sorry, you have to turn around.

I am sure we would see a lot of 3 AM starts. There are so many people who shoot arrows at the idea. "What about those mountain lions lurking in the trees?" But it is well proven that people will rise early if they need to: just look at the number of 3 AM starts for Mt Whitney.