I have a S&W Model 15-2 I bought used with a lot of holster wear but a great trigger. I'm thinking of using it as a game gun, but I would like a stronger finish on the cylinder that would also be easier to clean (I love using lead away cloths). At a recent match, I saw two guns with Ion Bond finishes from Springer Precision, and they looked beautiful. I was thinking of seeing if Springer would Ion Bond the 15 cylinder. I understand that Ion Bond is what S&W uses on the M&P340 cylinder, so it would seem an appropriate application. Would you guys do the whole cylinder assembly, or just the cylinder itself? Would Melonite be better (I think S&W used Melonite on a run of black 686s)? Anyone tried either? Thanks for all the help.