is it having feed issues now??
if it is not having any problems i would leave it alone. polishing a working gun can turn a 100% reliable working firearm into a jam-o-matic. the only reason to make such changes is to try and fix a problem weapon.
polishing removes metal and changes feed angles and should not be done to a working firearm.
"Gun control: The theory that a woman found dead in an alley, raped and strangled with her panty hose, is somehow morally superior to a woman explaining to police how her attacker got that fatal bullet wound." — L. Neil Smith
The problem with being stupid is you cannot simply decide to stop doing dumb things...
"I crapped my pants to avoid the draft!!" -Ted Nugent