Of the nearly 25 1911s I have owned, a number of them have been 3"ers, and all but one of those alloy framed.
My best experiences have been with Kimbers--two Stainless Ultra Carry IIs, one ultra CDP (pre-series II) and one Ultra CDP II (wife's current handgun).
As regards the EMP, my exploits have been posted previously, but the Cliff's Notes version is this: First one went back to Geneseo, stayed there for a while and was replaced by a second (different frame number), which also went back...twice for me and once more for the subsequent owner, who bought it with full disclosure and at a significant discount. And a whole bunch of spare mags, since Springfield sent me a spare mag every time I returned the pistol. Nice touch.
He actually offered to sell it back to me about two years ago (finally working correctly) and I actually met him at the range, tried it out and considered it.
But sanity prevailed. My Ultra Carry II (and the wife's Ultra CDP II) weigh the same as the EMP, fit the same holsters as the EMP, and shoot any type of
.45acp ammo ...reliably.
The EMP is exquisitely designed, imperfectly executed and significantly overpriced for what it is. IMHO.
YMMV...and I hope it does.
But when people say that you cannot buy or own a 3" 1911 in .45acp, I call BS. I have owned at least four so far, and currently own two. Mine shoot my 200gr SWC handloads like candy...and any type of JHP equally easily.