The rather nice trigger pull on the Kahr is so long that if I get impatient with it, I will jerk the gun down and hit low. My hands are too large for the gun also. That said, I think a 4" steel version in 9mm would be a great shooter and could be shot well without a lot of practice. But I would much rather carry a P-07 or P-10C if I wanted a 4" gun for carry. The beauty of the Kahr is its size. The only other 3" gun I've tried and liked was a Sig P938, but I always seem to shoot the Kahr well. It just hurts to shoot it.
I may try it at 50 yards just for kicks this week. Maybe. Just 5 rounds, though, and not after shooting the Kadet for an hour or so.
I just think a 4" barrel pistol is a great combination of size, accuracy, and magazine capacity for a carry gun, if the size isn't limiting, like in the cool months coming up. For now, I have a P-07 and the PM-40 in my rolling bag or I have the PM-40 under the shirt in a Crossbreed holster when I'm out and about or travelling.
Joe