[Leica] Minimizing Wear on Strap Lugs

[CHRISTOPHER.CHEN@customs.treas.gov]

The inside edges of the strap lugs on my M3 are very worn from decades of
hard use (by the previous owner(s)).  Is there any way to minimize further
wear?  I read somewhere on this list that chrome (?) strap rings are kinder
to the brass lugs than steel rings, but where does one buy chrome strap
rings?  Does anyone manufacture a strong, but less abrasive strap ring
(e.g., made of carbon fiber or whatever)?  BTW, I would like to avoid using
a never-ready case or 1/2 case because I think they slow down the operation
& reloading of the camera too much.
Thanks, Chris