Nice write up! & agreed with @Demontrich on the appropriateness of the working space.
I can confirm you should be able to see separation in gummies if it happens. I once deliberately ate one that was supposed to be a nominal 10mg that was closer to 120mg. That was a fun work day…
The last 4 or 6 in the tray showed visible “oil” droplets. I had not yet figured out how to ask my GC for potency on a gummy, but I myself reasonably calibrated, so I took one for the team 