Yes Jeff, you are probably right! I am on their professional service, so I get the option to send whatever I like back in twice a year. If you buy a new lens or camera, they will adjust your equipment so that it works well together. But it is never really practical to send everything in, so I generally have just sent in the cameras and lenses that work well together, and the (usually new) one that does not. Having done that I have gotten back equipment that works brilliantly. They have never charged me for this (don't know if it is standard practice with the new gear, or if it is a courtesy for their professional service), but it has taken a few weeks at least round trip. The gear itself has seldom been longer than a week or 10 days at the factory, but the shipping to and fro takes time for Iceland...even when express carriers are used, they usually take at least 4-5 days with customs and all, as the shipping is never direct...it always has to go to London or Copenhagen first, and then on to Frankfurt and then Solms.
Edit: I should also note that their customer service and behavior about this sort of thing has been absolutely fantastic, and they have earned me as a lifetime customer because of it. I have had great difficulties getting some other camera companies to deal with issues, but with Leica there has never been a question. If something is not working for me, they have taken it in, and either repaired or replaced it, with no denials or difficulties. They have often gone beyond the norm as well, such as doing a full CLA as a courtesy and not charging for it, or repairing issues that I have not even noticed.
For example, I once sent in my M9 which developed a senor line after a few months of ownership. They replaced the CCD entirely, rather than subtracting the line in firmware. They also readjusted the rangefinder. But what truly impressed me was that the "I" in Leica on the back of the camera had been worn away. It was the only letter that was missing any paint, as was very subtle...only a millimeter wide. I did not mention anything about it, but when I got the camera back, the camera had had the missing letter filled in. To me, this is a sign that they really care. They went over that camera with a fine-toothed comb, not just to address the issue I had with it, but to really determine if it was perfect. I have not experienced that level of service before, and it was one of the things that made me confident to spend the money on the S2 -- I felt like they had the service level to care for something that expensive.