I have a Springfield XD SC40 in 3" and like the gun, but having only about 500 rounds through, I'm not yet that good with it. On the other hand, I drive tacks with my Walther PPK/S, though I am concerned with occasional misfeeds (I checked the threads on that, lots of info).
My question is: I would probably feel better with a 3.5"-4" barrel for more efficient firing, and likely better accuracy. Is there really any functional difference in concealed carry with the slightly longer barrel? I know from reading all these threads that people carry full size tactical pistols and service pistols, but clearly it's easier to carry a shorter pistol.
For those that have carried for a long time, and honestly, is there much different between barrel lengths of the same gun? Or should I just get a couple thousand rounds through my XD and work at getting better with it?