Thanks for sharing MKingery.
That workflow is awesome. Especially for when you already have the alignments.
One timesaving thing the script does though is save a json that stores the correct alignment of all the parts you exported.
After that, Generate>Image Assets
seems really useful.
Photoshop CC recently introduced some features that the old script doesn't account for.
For one, Artboards (which messes up the alignment, and some kind of grouping, I think).
I don't have Photoshop CC so I don't know what else they changed. I just saw videos.