well i had an old epi pup cover that i had "distressed with steel wool and 600 grit sand paper, and i am seeing if vinegar will give it a little if any patina over time. I have it sitting in a thin layer of vinegar in a Tupperware with the lid on. I know that i got about 99% of the chrome off of the nickel and i also wore it through to the bronze in a few areas where my hand often rested on it. Im just doing this for fun, and if i have good results i may do this to the rest of my hardware on my paul eventually down the line... Has anyone used vinegar before, and how long does it take? The surface is smooth to the touch but you can still see the abrasions if you look at the pup cover from certain angles. I figure that with all of the chrome off and the roughed up surface that vinegar should at least give me some results. And to answer any questions as to why im using vinegar... well since this is just for shits and giggles at the time, id rather not bust out the HCL just yet.