Finish
You might try Magnaport Arms. I had a 57 done years ago. Had the works done. Action job, hard chroming, and porting. My fav S&W right now. I ran a hard chrome plating area in a tool & die shop a long time ago and the finish is great. It is only as good as the metal under it. If you want to go a step above I would suggest TIN. Titanium Nitride. Harder, slicker, but with a gold finish. I know a guy whom had a 1911 TIN finished. Truly a man with a Golden gun. Not a James Bond sequel either. There is another finish in the tool & die field. It is called black diamond. Harder than the hubs of hell and way slicker than anything mentioned above. Hope this helps