Others could differ, but I carried a KP97DC in a Milt Sparks VM2 IWB Holster since I got my CCW license a couple of years ago. After I got my KP90DC I ordered a Milt Sparks holster for it like the one for my KP97DC and got it a couple of days ago. The 97 is Narrower and lighter and I thought I probably would like it best for Carry. Wrong! Even though the 90 is thicker, longer, and heavier, it carries better. The grip is thicker, but lays closer to the body, and don't print as bad as the narrow grip on the 97. They are both excellent guns and to me the 97 has less recoil because of the Polymer, but I love both, and will probably carry both. I was just surprised that the 90 carried better than the 97.