I wound up doing the gunsmith fit. Having fit a few 1911 barrels I found it was profoundly easier than those.
I personally find my M&P to be my favorite range toy. So much so that I'm contemplating a swap from Glock.
That said, in light of Psalms post, If I were you, I'd probably go 2.0 if I were buying a new gun and didn't have any sort of attachment with that current duty pistol.
And then you don't have to worry about accuracy problems
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