Originally Posted by Olympus
You will sacrifice the finish almost certainly.
I'd be willing to bet you're right. However I trust him to grind on the frame more than I do myself. I also plan on this being one of my two main carry guns, so I bought it knowing it would get holster wear and some scratches.
Although now this does have me pondering the idea of tackling this myself and letting it be my introduction into minor gunsmithing...