I have a 638 that I bought at a local pawn shop 6-8 years ago. The previous owner had had it for years according to my pawn guy. He never carried it in a holster just tucked it into the back of his pants. It has lost better than 90% of its finish but still shoots great. I have thought about sending it in but it isn't hurting the function and it is a daily carry. It's ugly but honest. Not leaving me until one of my boys gets it. I clean it regularly.^^^ good idea !!
My friend never took factory rubber grips off his 642 that he wears IWB under his shirt at Barber Shop. He asked me to clean it. Sorry…. Beyond a cleaning / polish now.