I wonder if the author is overstating the issues with switching between a somewhat “lightweight” model and a normal one. I own both a 100% steel (aside from the mainspring block) 5 inch model plus a Kimber Pro Carry (first generation), which is an aluminum frame 4 inch model. I notice *some* difference when I fire them, but it’s not marked, doesn’t require adaptation and doesn’t seem to make much difference in accuracy (then again I’m not shooting bulls-eyes).

I agree that a standard 5 inch steel model ideally would be the base of your M1911 collection (it’s what I have for home defense) but don’t be too afraid to try one of the smaller models and see how it preforms in your hands. I can say the Pro Carry is nearly a joy to carry (still weights a bit much), and as usual the thinness of the M1911 makes it conceal pretty well. I also would not be upset if the Pro Carry was the only one I had; it or an equally high quality model with the same features should be able to earn your complete confidence.