I enjoyed the supervised FR5 spacer-block transfer trial and wrote it up very positively, but the demonstrator did most of the preparation; I want to correct what I personally did without pretending the good experience was false.
Describe where you joined the process, what you operated yourself and what the demonstrator had already prepared or still helped with. You can retain a positive first impression of that supervised trial. Just remove any claim that your experience established independent setup or complete-process ease.
I started the saved job and followed the tray-to-fixture transfers while they supervised; the demonstrator had prepared the fixture, tooling and program, and I didn't time that work or repeat it independently.
That's the useful paragraph. Give the preparation scope without inventing its duration, and say which parts you did not attempt. Have you changed the actual review, or only worked out the correction here? I'd like the reader to see the distinction where the original impression appeared.
The review now states those roles and limits, with the unsupported independent-setup claim removed; I still say I liked operating the prepared trial, which is what I actually experienced.