The two trigger pulls are definitely different. The trigger pull on the CM9 is similar to a double action only revolver, minus the noticeable cylinder flick you can feel w/ the revolver. For that size firearm w/o any external safety, having a long trigger pull helps prevent accidental discharges. Compared to most DAO snubs, or the BG380, the Kahr is noticeably smoother and lighter. I own both a 642 and BG380, I know for a fact that I can shoot the CM9 much better than either. My guess is that if S&W offers a "mini" Shield, the trigger pull will be heavier, similar to the BG380.