The physical faceplates and inspection decisions for our FR10 lesson are now identified, but several useful presentation images still carry guessed scratch arrows; I want to preserve the seating comparison without teaching those arrows as defects.
Keep the unmarked originals and put the seating comparison in its own clearly described set, linked to the physical decisions; otherwise somebody will helpfully reuse the annotated version and revive the mistake you have just removed.
The revised lesson now uses unmarked presentation pairs beside the identified physical decisions, and a second tutor correctly distinguished the accepted reflective plate from the confirmed reject without my prompting; the old annotated teaching copies have been withdrawn.