well, being a bit of a poser....i gave mine a good wire brushing, then sprayed them with halfrauds gold, then,(when the paint was good and hard) using very fine 'wet & dry' paper on glass and wetted with brasso, i placed the caliper outer face down and polished off the paint which left a shiny round area then a gold ring then an outer shiny ring.....if you look at the calipers you'll see what i mean. anyway, that was 2 years ago, done loads of miles, lots of washes and polishes, and they still look good