Greetings! This is my first posting in this forum and I like to make a comment to what I think is a serious matter, namely the mechanical stability and reliability of the RF of this very reputable marque's camera.
The legendary Zeiss Contax used to have a very stable RF design, albeit not as convenient to the user as the Leica M3 but certainly superior to the very simple RF used in the Leica screw mount cameras. I am now concerned that the current incarnation of ZI RF's are just in line with the sloppy job I have seen in the past few years coming from Japan with very fancy German names.
There is absolutely no reason for these cameras to arrive at the dealer's shop with their infinity adjustment off and I argue that it is not the dealer's job to atempt to redress the problem, no matter how simple the adjustment may be. The factory and the designers may have a problem, either it is in production, or in QC inspecting, or there is a serious design flaw that needs to be addressed. The current Leica M RF can take quite a lot of abuse before it goes out of alignment, it is very solid and I see no reason for the ZI RF not to be equal if not better, since it is of very recent design , than the old and legendary Leica.
I have and still am repairing Leicas and the like in the United States.