I already did choose the SP101, three times thus far, to be specific. Two were customized by Jack Weigand, when he was still doing custom 'smithing. The third is one I purchased because I wanted one with a hammer spur, to carry occasionally in a horizontal shoulder rig, and to try some longer-range single-action plinking. I do have a couple of J-frames, but almost never need something that small. I carry an SP101 at work for back-up, and on my own time often carry two of them, if I am not toting my duty pistol.
I have found that the SP101 has enough size and mass to handle more like a duty/service handgun than a pocket pistol, yet to be almost as concealable as a J-frame. Yes, the SP101 is a bit heavier, but I like a bit of heft in a serious weapon.