Some finale pyro changes from the debut/first night.
When everything goes dark and the narrator says "In the Great Symphony of Us" in the finale, the comet with the long tail used to be launched as she said Symphony, but now it launches after the word Symphony and right before of Us.
Hard to say which timing is better, but I think the new change fits more since the pause after Symphony is much longer. I timestamp'd the videos below to show the slight change.
In the Great Symphony...(boom)...of Us
Comparison, opening night (12/5):
Last night (12/9):
Also as previously mentioned, the final low-firework on the central barge was delayed a second so its impact and visual is better seen and heard, which is a plus. Glad the show's being tweaked as performances happen!