That's the awkward bit I hadn't asked. I was picturing a label on everything, including pieces too small to read it. I'll take the size question back to the tooling person.

I'd still use a labelled return tray while the marking is sorted. But an occupied slot doesn't tell me the right revision came back. Who checks the loose pieces when they're returned?

Me for the count, tooling for anything I can't identify. Thanks for separating those. A full tray was doing too much work in my proposed checklist.