When it comes to a carry revolver it comes down to compromises. Having shot a 6 inch revolver in bowling pin matches, I attained a level of proficiency that I could never replicate with my 4 inch guns. A longer sighting plane is not the trivial advantage some would have you believe. Nevertheless, I pocket carry (in a Bianchi pocket holster) a S&W M36 snubbie for my concealed carry gun. Therefore, I compromise and do not get the potential accuracy (longer sighting plane), and shootablility (weight more forward via the longer barrel), of a six-inch, for the convenience of pocket carry inasmuch as I have no butt to hold up a belt (suspenders), and do not want to cut myself in half with a belt to carry anything heavy. If you wish to carry a four-inch on your belt (and have a butt to support your belt), then do not compromise as I do. What it comes down to, is what compromises you are willing to make and what compromises you feel are necessary.