Anybody ever polish the inside of a brass sleeve with a dremel polishing attachment tool or something and make it shiny again? If somebody was real picky about it being original but wanted to make it as slick as possible.

I recall changing a brass one to nylon on purpose once, but the plunger had actually worn all the way thru the brass in one area, now *that's* friction! Plunger probably had some mushrooming on the end that helped it along