I just receive the 975 replacement. I measure the width of the shoes and found that left shoe is 1mm wider than the right shoe.Also, the medallion looks a bit off. Is this a big problem? Any other problem on the shoes that should be a deal breaker? Thanks in advance Warning: Spoiler! (Click to show)
I suspect, though I could be wrong, that any difference (left vs. right) you feel in the fit is due to your feet being asymmetric, and not due to a 1 mm difference in sole width. If the shoes fit well, I would not be concerned with this.
The nick in the welt looks entirely normal to me.
As for the medallion, I definitely notice that one begins closer to the welt than the other. Also, the tips of wingtips (on the vamp) are slightly different as well. I believe both of these issues are pretty common, but it's your call. Since the 975 is a stock model, it should be easy to get a replacement, unless you take a narrow width. Of course, it sounds like you've already done this. Third time's a charm?