LOL! When I bought my second "Bargain" M6 from KEH (a very late # BTW) it was graded down only because some bozo had blacked out all the white engravings to make it more "discreet" (probably painted his Pocket Protector black too, with Klingon Cloaking Paint he bought at a Trekkie convention). Took me quite an effort, with advice from Don Goldberg, to restore it. The red logo had been painted too, and the kicker, as it relates to this thread, is that Dave Ellwell at Leica said he'd send me a new ret dot for free if I wanted.