Much better, thanks for the update.
No thanks, if Canon won't support their own product lines, I'm not going to give them any more money for it. I love the M, but I'll switch over to the SL1 and use all my EF-S lenses if they are not fully behind the M. Or maybe get something completely different.
I don't think any major Canon product (camera or lens) I've ever received from B&H has been sealed (or from Amazon or anyone else). Canon doesn't seal their boxes.I haven't from Amazon/B&H/etc either, but I just received a refurbished 28-70 f/2.8L II from Canon USA directly, and it was sealed (in a white box).
How did you attach the Nikon strap to the EOS-M? So far, I've been reluctant to destroy the neck strap that came with it, but may have to at some point.
Is there any chance we're seeing vibrations from mirror slap in the 6D's large mirror?
Might as well use Mirror Lockup for any future test shots just to rule that out.