I have a 3" blued half lug GP100 and I love it, but I got it for more of the "cool factor" than for actual use as a carry gun. I agree, a 3" 686 would be just as good for carry.

For carry, a 6-shot .357 like a 2.5" 19 or 66, or a 3" 65 or 13 will do the job just fine. The 3" GP100 feels more like a short barreled holster gun to me, than something made for CC. Still, when I get the funds a 3" stainless GP is high on my list, although I have had the nagging urge for a 3" 686.

FYI the last 66's made,with the 2-piece barrel, do not have the flat spot on the forcing cone. My 66-7 from 2003 has a round forcing cone, like an L-frame. Possible S&W just used the same barrels for the K's and L's when they went to the 2-piece.