[x] Rev0 is huuuge. It can be made narrower. Maybe?
[x] Push the TRS jacks back slightly, so the mounting flange on the face of the jack lines up with the PCB. Some quick measurements suggest that "slightly" is 2.1 to 2.3mm in this case.
[x] Ensure that the 40mm spaced mounting holes have a setback from the board edge consistent with our other panel-mount boards. Ensure there is enough space around them for whatever mechanical solution will hold them to the panel.
[x] The TRS jack footprint has an error, in that what should be the silkscreen outline is actually a line on the solder mask exclusion layer. So what initially appears to be a nice outline is actually exposed (and HASL'd) copper.
Noncritical