Holster wear is when the holster removes the finish from areas that the handgun contacts the holster on draw and re-holstering. No ammount of polishing will restore a finish to bare metal. You can either rub the finish off the entire gun to make it match, live with it, or have it refinished when holster wear gets bad. Thats about it.
"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...