Assuming it is the same as when they do the same show twice in one night, how does it work if you have FPs for both shows? By the time you leave the first show are you so far behind the crowds lined up for the second show that the FPs aren't that useful?
If it makes a difference, our preferred FP viewing spot is from the bridge -- not a dead-on view, but also no scramble to get a spot with nobody in front of you. As I recall, even when there are big crowds fighting for the prime spots down front it is easy to just mosey on over to the bridge because hardly any early arrivers go that way. Does that help with the second show?