The main thing I think is important is, MM doesn't have a factory, isn't like Warmoth or USACG or such in that it isn't vertically integrated. A little like buying a neck from Stew Mac. You might get a nice one last year; maybe by this year everything has changed.
So, if you find a nice one, enjoy it. But I just think you gotta take them case by case.
Are Mighty Mite necks and bodies still made at the Cort factory in Indonesia that produces the Squier VM and Standard series?
As far as I know, they're still identical to the Squier necks. I have a 2013 large-headstock Squier neck and a MM large-headstock Strat neck, and they're identical (including the inlay material, skunk stripe wood, 50/50 side dots, and that weird wood plug over the steel truss rod anchor.) If they didn't have markings on them, you'd never be able to tell which was which.
IIRC, Cort and MM have long had some kind of business connection, so MM goes wherever Cort's Squier production seems to go; use to be Korea, now it's Indonesia. Seems logical though: if they're already making the exact same neck, seems like it would be most profitable to just buy the exact same ones (minus the logo), stamp a MM brand on the heel and be done with it.
I don't mind the MM necks, but I'm going to upgrade this one soon. It's not
bad, per say, it's just kind of...meh. Plus the fretwire seems soft, as I've had to dress them a few times over the past year (of course it could be that I play the thing a good four hours or so per night!) I notice I have to adjust the truss rod a bit more often than some of the other guitars I've owned, but that could just be luck of the draw.
Speaking of the truss rod...one weird thing I've noticed about MM necks is that the first fret always seems to be ever-so-slightly backbowed when the rest of the neck is dead flat. I don't know if this has to do with how they install their rod, how they level the fretboard or what, but I've noticed it on more than one MM neck.
Overall I think the MM necks are (usually) a good deal, but they're pretty much worth exactly what you pay for them. I don't mean that in a necessarily bad way, just that people shouldn't expect them to be some kind of "hidden gem". They're
certainly better than most of the highly questionable, no-name Chinese necks on Amazon and eBay though! That's a $50 gamble a lot of people seem to lose. I'd also much rather have a MM neck than a GFS, for whatever that's worth.
And FWIW, this particular neck is sort of in-between as far as thickness goes: I measured it at about 0.860" all the way down, so it's not super-chunky, but not quite what I would consider thin, either (this is the standard "modern C-shape", not the soft V that MM also does on some necks.)