I have a very early 66 with all stainless sights. It's a beautiful gun but, boy, those sights can be maddening, particularly on a bright day when the sun's coming from over your shoulder. I can't for the life of me figure out what possessed the designers/engineers at Smith to think that all stainless sights would work effectively. The concept didn't last very long -- only a year or so -- before they switched back to blued sights.