I carried a 4006 for several years when I began my career and hated the thing. I carried a Glock 22 when I was part-time and was forced to carry the Smith when I went full-time. Compared of the Glock it was extremely heavy, not as accurate, and a pain in the butt to take apart and reassemble for a new cop. Unfortunately, that distaste for one gun carried over into other second and third Gens as well. That a friend of mine at the department, who was also my mentor and a Smith & Wesson armorer, turned me on to other guns like to 5906, 908, is 645. He recently started selling them off after he retired and now I a newfound interest in them. It's funny how we don't buy things when we could and they're cheaper, only to have a newfound interest in them when they're no longer made and as accessible! Sigh, such is life.