It seems to me some of the logic about military or Leo requirements have merit, but for the Joe shooter, it is not using the manual safety, just grab and go, now I have felt the older DA 1911's like the double eagle and the seecamp, awefully heavy pulls, the Para LDA system is really good, and you have the option of leaving the safety off, or engaging the manual safety, the other 1911 safeties apply. The LDA system is a much lighter trigger pull. It does not provide for second strike capability like the aforementioned, but works very well.