Don't know if S&W will ever go back to "no lock" versions. I have both 4 1/4" and 2 3/4" versions. I like both, but the 2 3/4" is quickly becoming a favorite. I modified some S&W (Hogue Tamer) 500 X frame grips and it is comfortable to shoot with everything I've put thru it (up to and including 310gr over 20.0gr H110 at 1,100 fps)

Little gun on left with modified S&W 500 X Frames (removed finger groves and rounded butt with Dremel sanding drum or belt sander/knife sharpener.

[Linked Image]

Paul