There is no way of knowing unless a back-to-back comparison is done. HOWEVER, I would rather have 80% of the correct part tuned 100%, than have 100% of the correct part tuned 80% :)
When you do it long enough you have a good idea what you’re leaving on the table. I’d bet PRH, RAMM...replicar...I know there are more can give you a razor close estimate of what left on the bone.
