That is one philosophy. Meh, whatever .I got a job once to polish out a vintage Airstream trailer for a guy. He specifically told me not to metal finish out all the dings on the front because they were considered ‘beauty marks”. His fellow Airstream trailer society would know that and look for them when they were on one of their meets.
So I’m going to stick with the same philosophy with my 109’s. Use is a beautiful thing.
However, I have been known to metal finish out a few dings on my 109’s and 1085’s, but have not crossed the OCD line of actually having them re-chromed.
The barbed slip ring/washer under the G250 cover, at least all of mine, long ago the barbs fell off. So now the ring will slip out along with the diaphragm. The slip washer were never exactly retained anyway by those little plastic slivers which see no useful purpose. Sure, they make assembly easier I suppose and help to center the washer, neither of which I see as a difficulty to begin with.