You wonder about J frame carry in a holster? OK here's a story. Fifty years ago I was issued a S&W model 10. 34.6 Oz. 6 158 gr. rounds plus another 12 in loops on the holster. A heavy Sam Brown belt reinforced on the gun side. Then on the belt, steel handcuffs in a case, Cocobolo wood nightstick on belt loop, Motorola radio about 10x3x1.5 inches, mace and a 3 or 4 D cell aluminum flashlight. Plus a blackjack or sap in a slim rear pocket. Brass callbox key and your personal keys, wallet, watch, pens, knife etc.
That's what you carried walking a beat. Working a car you also had a briefcase filled with reports, forms, chalk, extra shotgun ammo etc.
Now just how many years of all that **** hanging on your belt do you think is fun? The best thing in police life is getting a promotion or Detective assignment and the chance to dump all that gear dragging your butt down. First thing I did was go to a model 36 full time. Next thing I did was dump the 36 and strap on a Airweight.
That was forty years ago. Today I still carry a 442 no lock in a holster because that's what I'm used to. That's what I train with and I've been shooting DAO since 1973.
I suspect that a lot of the post's from guys that favor J frames or G42's & 365's have had quite their fill of lugging big guns around. When you do it for a living it gets old, fast.