Originally Posted by arturius
I ask the question because I believe one should train with the gun they carry; to do otherwise holds no interest for me. Without proficiency and training what's the poing
The problem is that a carry gun as you define one makes a really second rate range warrior gun. To make your theory work, you need to carry a bigger gun.
I have a PM40, a T40, and a P40. I see no point in compromising the enjoyment I can have at the range by being forced to shoot some nasty little sawed off gun all the time just in case I might have to shoot defensively once in my lifetime. Shooting the guns is just not that different, but the range at which you can shoot effectively would certainly matter.
It's really not all about defensive shooting. You find a comon ground you like to call "fun". Different people will use different guns to define that, but look around and appreciate what others are doing with their guns. Yes, you start out with one gun, but if you like shooting, trust me there will be other guns for various applications.
Plan on shooting some of those thousands of rounds in a gun that is really intended for what you are doing. It's not alll about fast draw, point and shoot at 10 feet.