I've read over the posts dealing with care and maintenance but very few talk about if you have kantana's. I have just decoratives ones, but I want to display them but I'm worried about dust on the cording and saya (making them gray abit). So should I treat the cording on the saya and hilt with like a teflon so dust is easier to come off and wont hold. Then the saya is another problem because mine is a matte black (non lacquered). I like the matte over the lacquered but should I got ahead and lacquer it or just try and is if the teflon will work on it too without discoloring it?