The murdering vandals at Clark Custom Guns did a horrible job on the re-bluing of a 1911 I have. The blue is fine, the polishing job basically ruined the gun-- the lettering and serial numbers are practically wiped away. Be careful of who does the polishing. Also beware of the bluing method. I have one custom gun with bluing that I wore to bare metal within a few months around the trigger guard. If you do it, go to a bluing specialist that will do a good job, and expect to pay good money to have it done. Otherwise leave the gun alone.