Catman, I like the folded slide SIGs, 228s included, as much as the next guy, but within my humble experience they do not resist rust well if exposed to wet environmental conditions. Worst I can recall, was when one of my coworkers was out in the rain all day,and not being a "gun guy", didn't think about taking his SIG out of his wet holster after end of shift. When I later examined the gun, the slide was a rusted mess. Not just light rust/ cosmetic damage, but deeply pitted. So bad I strongly suggested he have it replaced. Like you, I never had a problem with rust or corrosion with my 228s or other folded slide SIGs, but I took care of them. But the slides, controls,etc. are just not very rust resistant as compared with slides with more durable finishes, or machined from stainless steel, etc....