I'm glad to see this thread again, as I have more to the story.
I have been carrying the 442 (w/158gr Buffalo Bores) on my (plainclothes/polo shirt) job for a couple monthes now, and what a pleasure to carry in a strongside OWB paddle SERPA retention holster.
I can carry it exposed -or- concealed by just moving my polo shirt over it, or behind it. Under the shirt (even with the OWB Serpa) it's no larger than a typical cell phone bulge, and attracts NO attention. Very comfortable and concealible...even with Arizona's light "warm weather" clothes.
And the rest of the story: I enjoyed my first class of Defensive Pistol I, yesterday, and it proved itself that it was a great choice.
It did a very accurate job of putting all shots into the center of mass with followup headshots. (even under pressure/time drills).
So, despite the reputation of the snubby's lack of accuracy...it was great at typical Defensive Pistol ranges. (<21' to contact distances).
It lacked a little on the steel plate knockdown test...but that's another (knockdown power) debate, and of course I was using small target training ammo, NOT my 158gr Buffalo Bores on the steel plate shootoff.
I really feel that the S&W442 is a great little carry gun with plenty of accuracy and should be fine for "knockdown/shock" with the larger 158grainers.
I believe this would also be applicable to the Lady Smith and the other J-frame smittys!!!