Much as I hope nobody will notice, I do agree with Mike Irwin on this.
S&W is capable of putting out a well-done revolver, but QC appears to be getting a bit erratic, and that's not just a matter of comparing them to the classics of previous years.
As I've mentioned before, I had two examples of a recent special N-Frame model that were both returned to the factory unfired. Both had barrels with the front sights canted, both failed a No-Go gauge in their forcing cones, one had a muzzle crown that wouldn't initially let a range rod through it & then showed a barrel constriction toward the rear probably formed from over tightening, both had engraved rings in the cylinders from edges left sharp on the bolt stops that should have been addressed, one had to have its cylinder forced shut to close it & that one also had a gap between the two grip panels in front nearly wide enough to let a dime in.
That's poor quality control per se, and not just a matter of comparing poorly to the former standards of the days of hand fitting and attention to detail.
Conversely, the sample of the current .41 Mag Mountain Gun I have here shows none of those problems, and has endeared itself so much I'll be keeping it. With some adjustments to fit personal preferences, it should be a pretty good gun.
Note these are issues totally aside from the MIM question, which is another matter entirely.
I'm just addressing how the things are put together.
Denis