[Leica] Black vs. Chrome lens quality

[crgrbrts at verizon.net (Craig Roberts)]

B.D. asked (fairly enough): "Have you had any problems with this lens with
its "lightly constructed and somewhat roughly machined barrel components?"
...

Well, the focus ring seemed a bit out of round, which caused the focus to
bind a bit at one point. Re-lubing helped considerably. Admittedly, the lens
could have been the victim of rough handling or other damage from a previous
owner. I was just wondering if the chrome versions were more robust.

In fairness, I've never had a Leica component suffer irrepairable damage.
It's tough stuff.

Craig