I went to the local gunshop today and bought my first revolver. It is a Smith and Wesson 66-2, and the timing and lock-up are good. I paid $230 for it, but the stainless finish has marring and scratches. This seemed like a pretty good price, even with gun being in good/fair condition. What would be the best way to polish the stainless, or should i have it professionally done? Any input would be much appreciated..