To me, this is nothing compared to wondering when Southwest will actually make flights available. They will say that their schedule expands on a particular day, but they do not provide a specific time, even if you ask. I have learned that they usually start loading the schedule and fares early in the morning, but I also learned that if you want a specific flight at a busy time of year, those fares can shoot up within an hour or less after they first are available. Saving or losing tens or hundreds of dollars on a family trip is more important to me than whether or not I can get a FP for one specific attraction that I know I can do at rope drop if it's that big a priority.