The grip of the 97B or 97BD has a different geometry than the S&W. Imagine a really big S&W model 39. The CZ97B is a big gun, extremely accurate. The CZ97BD is by far the way to go. The de-cocker is worth it alone, not to mention the Tritium sights, and the rubber grips. IMO. I had one that's now at a local GS. It was just too big for me.