I ran the FR10 puck job; I didn't build it

Start and normal status were clear. Tray change needed prompting. I didn't try an interruption.

That is already a more useful review. Easy to start a prepared job is a real observation, just not the same as easy to commission.

Edited the setup claim and named the preparation. Kept my positive first impression, with tray-change help included.

Did your timing start when you arrived? If the review gives a setup duration, the reader needs to know whether the demonstrator's earlier work is excluded. You can leave that duration unknown if you did not observe it.

It did. Removed setup time; I only know how long my visit lasted.

That avoids an estimate your evidence cannot support. I'd keep the limitation about interruptions visible as well, since a reader deciding on a workshop trial may want to investigate that next.

Did the demonstrator explain the tray change, or mainly point at the next control when you paused?

Mostly pointed. I've said that now. Thanks Lucy, my timing claim was the bigger mistake.

Fair correction. A useful follow-up would be whether the written tray-change instructions make sense without those hints, not a second claim to have commissioned it yourself.