I note with interest the comments about the SIG P220. A difference of opinion is what makes horse races!
Back when the Browning BDA was the only double-action .45ACP pistols being sold in the U.S., I thought I had to have one. (The Browning BDA is the same basic gun as the SIG P220, except for the magazine release being on the butt in the BDA, and was made by SIG-Sauer.) When I got it, I found it to be the sharpest-recoiling .45ACP pistol I had ever shot. It almost hurt to shoot. It was not the lightweight alloy frame since a Colt Commander also with an alloy frame did not kick nearly so hard. I remained puzzled as to what would make the gun kick so hard, and retained the gun only as a collector's item.
Many years later, I was shooting with a friend who had a new SIG P220 .45ACP. When I shot it, the sharp recoil was almost totally gone! Puzzled, I retrieved my old BDA from the vault room and brought it to the firing line and shot it with the same ammunition as was being used in the P220. The BDA kicked noticeably harder with the same ammunition!
I wondered what could be the difference when the guns are essentially the same design. I disassembled the two guns and a difference then became apparent. The SIG P220 has a twisted double-wire recoil spring, whereas the old BDA has a single strand recoil spring. I remain amazed that the recoil spring alone could have such an impact in felt recoil, but it clearly does.
That said, I far prefer the grip shape of the Colt Model O (Government Model/M1911/M1911A1, etc.) over the BDA, and the Model O has a safety that the P220 does not have. (As Ayoob says, "Pull trigger, go bang." No safety to possibly save you if your Model O is snatched by a bad guy.) I think the grip shape and angle are the key design elements that make the Model O such a great-feeling shooter. When compared to a Glock, I do not see how the Glock ever developed such a following due to the awful grip angle. And lack of a safety.
Why do I think this discussion ought to be over on the Colt forum? The idea of a SMITH & WESSON - I said a SMITH & WESSON - Model 1911 seems sacrilegious! The Gun God cannot be pleased with such sacrilege. I think she might have some severe consequences in mind for anyone creating or shooting such an abomination. I would not chance it. Get a real Colt and enjoy the favor of the Gun God. You have been warned.
As a closing point of interest, we Iowa lawyers have always known that the Colt Model O is the ideal handgun. I guess down south, they are slower to realize the obvious! Welcome to the club, Cajun! What took you so long?