Actually, it's pretty retarded. who hasn't while cleaning their 1911s had the glorious idea to rack the officer slide on the full sizre frame rails and vice versa?
There IS a reason why the Colt commander was made and is still popular... because it fills a niche.
I do carry a 4" 1911 on a compact frame and I can tell you that while it is balanced, it is as good as it is going to get (4.25" is pushing it, and anything more... 5" for example, makes the weapon completely off balance). So, what does this 5" brainchild yield?
Pros:
- longer sight radius (less necessary for CCW and comes at the cost of quicker sight acquisition)
- most reliable topside by design
- Concealable grip
Cons:
- Uglier than a S&W auto (almost as ugly as a Glock)
- Unbalanced weapon
- Harder to grasp for quick draw (this is what made me understand the Commander's value)
- Loss of capacity
- Harder to carry comfortably especially while sitting down
At the end of the day, you have three choices: 5" 1911 with/without bobtail abomination, Commander or smaller CCW, or that thing. Depending on your role, use, comfort, and shooting habits, either a full size or a compact will be far more advantageous. that's an awkward, inefficient solution to a problem that was solved long beforehand.