I am on the other side of the fence on this topic. I don't mind the round butt configuration on a J, K, or L frame, but I much prefer the square butt on N-frames. I like magnas, or some other grip that follows the grip frame while leaving the front and back strap exposed. On the smaller guns, the round butt feels okay because with larger hands the whole thing is fairly small so concessions need to be made. With an N-frame, the round butt feels like it is shortening my grip so much that my knuckles are rammed into the rear of the trigger guard. With the square butt configuration, my knuckles touch, but are not jammed into, the trigger guard.
I love an L-frame with hogue bantam grips on it, but not stock magna-style grips. I tried larger, combat-style wood grips that completely envelop the grip frame, but they add a lot of thickness to the grip which makes concealed carry more challenging.
I'd love to see S&W offer the N-frames in square-butt, and the others in round (although a K-22, or 34-1 feels right to me with square butt).
That brings up a question. Does anyone make a magna-style square-butt grip that fits on a round butt (with the grip material filling in the area that should be square-butt but isn't. I'd buy one right away for my 45colt mountain gun. I like the stock Ahrends, but prefer the classic look of an N-frame with a square butt and magnas. By the way, I don't know enough about grip nomenclature to know if magna is the right term, so please forgive my ignorance, and I would appreciate some enlightenment from the sage members of this forum.
Thanks