I'm the cause of this post, in that when Bulldog's knife arrived I dis-assembled the knife and cleaned it and took the washers and "ever so gently" rubbed them flat on a SuperFine Spyderco ceramic stone, there are raised sections and some gunk as you'd say around the edges, practically no material was removed from this effort but a mirror look to the surface was made that when re-assembled the knife has a super smooth opening and closing action again.
Now you don't have to go over board and I'd never condone taking the washers to an actual buffer to do any "polishing" but what it shows me is that the washer's surface is all in the same plane and I only go for the side that faces the blade as that has the friction against the blade, smoother surface, less friction.
So yes, DON'T go overboard, NO sandpaper for heaven's sake and no power tools what so ever, and that Ultra Spyderco ceramic is like 5000 grit or some nonsense like that, amazing smooth, it is almost as smooth as glass it self!
BUT I've emailed back to Bulldog as he is sending me a Fancy Sebenza that he, and rightly so, doesn't want harm to come to it, that I'd not do that part of my cleaning.
And speaking of this, this 'polishing' need only be done once I'd think, as in use the knife will continue to do it's own polishing but I like to get things evened out initially.
And hi Paul! how ya been?

G2