Back in my wheel gun days, I carried either a Model 36 or a Colt Det. Special. The hammers destroyed the linings of all my suit jackets. I also feel a small frame gun, with just a 2" barrel is more likely to fall from an open top holster as the holster wears in and softens.

If I were going back to carrying a J frame, I'd be inclined to get a holster with a thumb break, then practice using the retention device.