I see what you mean about the blemishes. They would be irksome to me too. Kroil penetrating oil will soften the rust up before you use the Flitz or Mothers. Let the kroil work for a few hours. Then as H.Richard said above, go lightly with the polish. You will probably need some plastic pics to work on the thumb latch. I think you will be pleased with the results and be able to live with whatever blemishes still remain. Also, I wouldn't consider a refinish. Your gun will maintain greater value with its original finish over a refinish, even with some blemishes. Good luck.