[Leica] Is this another R8 flaw or am I just over-worried?

[Pascal <cyberdog@ibm.net>(by way of Pascal, <cyberdog@ibm.net>)]

I have only seen one reaction to this one, which seems strange as there 
are many R8 owners on this list. The message must have been lost in  the 
general E-mail problems over the weekend. Here's a repeat:

(snip)
One thing though I would like to ask fellow luggers who use the R8. I 
have noticed that if you manipulate the 70-180 APO on the R8 (like 
focussing), there is some play on the lens mount (only some millimeters 
but it can be felt). This has nothing to do with the lens, but with the 
body. After you mount a lens until it clicks into position, you still can 
turn the lens some millimeters.
This also happens with other lenses, but is less noticeable because of 
their much lighter mass. With a heavy or long lens you are, of course, 
using more pressure on the body as you are focussing. Then this becomes 
obvious.

There seems to be no practical consequence in this as far as results are 
concerned, but I was wondering if anyone has experienced something 
similar. This is my second R8 body (the first one was flawed and got 
replaced) and it was the same with both of them. Never got this 
impression with my Nikons.
I have asked the question to the Belgian importer over the phone, and 
they said I probably shouldn't be worried as a couple of millimeters 
falls within the "normal tolerance level".
Is this another R8 flaw or am I just over-worried?

Pascal