This is a fair comparison of barrel length to the LCR. I am having a problem with the idea of packing an SP101 around during a daily walk, or a hike on a local trail. The Black Widow has crossed my mind several times, after reading other posters here in TFL write that they can slip a Black Widow in a pocket and be off, with no fiddling aroud with a holster or rig. Doesn't print, is easy to access. I expect the LCR would be very easy as well, in 22 mag or 38 or 357.