The problem with the system is you can book Fast passes for your ENTIRE stay.
So even if you do yours at midnight .. there is a lot of other people who have already scheduled Fast Passes for those days because they have a longer stay than you and things are booked up. Last August, I couldn't get A&E fast passes at all at my 60 days AT midnight because I had a short trip.
Example: If you are looking to get fast passes for the first day of your trip, 60 days from now, there was someone else who maybe had a 10 day trip planned that may have booked Fast Passes for that exact date 10 days ago!