Just received my 686 plus today. Was not aware of mim parts and just feel it looks like they used old parts especially when the rest of the revolver is SS. Was told by CS I can get a kit for $200.00. Not interested as the revolver was not cheap. Own a 629 8 3/8 from 1983 and I guess I got spoiled with the S&W quality. I'm sure it will be fine but expected everything to be SS especially from S&W. Thanks for letting me vent.