What I carry doesn't matter. What does matter is that you carry what fits your hand, you properly break in, and you practice with. If it is not comfortable, not functioning properly, and you don't practice then don't bother carrying.
A revolver is a no brainer but if you choose a semi-auto you break it down and lube it, rack the slide a couple hundred times, break it down and clean it, finger polish the slide and ramp with a rag and jewlers' rouge, lube it, and take it to the range. Fire a hundred rounds, clean it, lube it, and fire another hundred rounds. I will not carry a semi-auto which hasn't had a couple hundred rounds through it. When you are comfortable that it will not jamb then while unloaded pratice where you will carry it and getting to it without shooting yourself.
I have reduced my handgun collection to a G21, G30, Colt Detective Spl, S&W 440, S&W 60, S&W 340PD, S&W 351PD, Kel-Tec P3AT, and a Kahr P380. Prior to retiring and moving closer to the equator (and only wearing shorts and t-shirts) my daily carry for years was a J-Frame. Living in an area where very light/skimpy clothing is prevalent the lessor ballistics of a .380 won't be hindered by jackets, sweaters, coats, etc; so I properly broke in a Kel-Tec P3AT (which I carry in my front pocket in a "Ross" rough-out leather pocket holster) which has been my constant companion for the laslt 3 years; and am now breaking a new Kahr P380.
