I have a Colt King Cobra that I bought new years ago. I shot it quite a bit after I got it and then put it up. I got it out recently and noticed it has a very light but noticeable scratch on the frame. If I run my fingernail over it I don't really feel it so I don't think it's too deep. I have absolutely NO plans on getting rid of the gun but I'd like to get the scratch taken care of it I can. Also, is there anything that can be done with the cylinder line? What do you guys think would be be best thing to do? Can I have it professionally cleaned and polished or should I just leave it alone?