Risks

The mold, not the settings, makes the scrap

Risk	A worn or damaged mold scraps parts at any settings, so the trials find no band where parts stay good.
Early sign	The rejected parts carry the same mark in the same place, on every shift.
Mitigation	Sort the rejected parts in the first check, and send such a mold to the mold shop before any trial.
Impact	The study of that mold, about $1,900.

Risk	The sheet hangs at the press, but a shift starts the job from the numbers it remembers.
Early sign	Changes with no name appear on the sheet, or the bin fills faster on one shift.
Mitigation	One named technician reads the changes on each sheet every week.
Impact	That mold's part of about $29,800 per year.

Risk	Some customers approve the settings a part is made with. A change then waits for their sign-off, which can take four to twelve weeks.
Early sign	The trials find settings that work, but the job still runs at the old ones.
Mitigation	Check each part's approval before its study, and start with the parts that need none.
Impact	The saving on that part until the customer signs off.