Theory time! —
Yesterday (2/29), there were 71 guaranteed BGs, last group called was 142, so double the amount of regular groups. Basically half of total groups called were regular, half backup.
Today (3/1), there were 53 guaranteed BGs, last group called was 108. Again, that’s about double.
So, could they be distributing the same number of backup groups, as regular groups, once they decide what that threshold for regular BGs is?
There was no reason to stop calling BGs 4+ hours before park closing today, unless, they indeed ran out of groups and called up everyone. At most downtime’s run for 40mins to an 1.5hrs top.