As far as I can tell it has been like this since I got the knife. Which supposedly had a fresh refurb done at the factory before I got it. A couple months ago I noticed this wear, but I don't know if it's normal or not. It isnt just a slightly different color. It is actually a very shallow depression where the blade rides. I can feel it very slightly while opening but it definitely doesn't have any effect on the knife. Is this something I should get repaired? Do they all do this eventually?
