I was doing my periodic scan of my Hollywood Studios plans on Saturday and managed to snag an 8:10 am opening for our trip in a month. I assume they dropped a few more openings with the earlier hours. So now I have a $200 incentive to get moving really early that morning. (Plus a son who was so excited to learn he was going to get to build a light saber.)
I suspect you might keep an eye the day before to see if anybody cancels their reservation rather than be out the $200. Unlikely, I bet. But you never know if someone’s plans are going to fall through for whatever reason.