At this time a Kahar CM9 is my carry gun, but I am starting to develop arthritis in the joints of my thumbs. Due to the pain it takes me 3 or 4 attempts to rack the slide, I believe that it is becoming a safety issue when I need to unload the gun. I am looking for input on a different carry gun, that is close to or the same as my CM9 ( in size and function) but with a lighter slide spring. Any help?