I have been a deputy sheriff, a prison officer, a county detention officer and an armed security officer. I currently carry a Springfield Armory XD-45 in a Blackhawk Serpa holster, and carry with a round in the chamber. The grip safety, similar to the 1911 .45 ACP and the Glock-like trigger safety are sufficient in the hands of an experienced shooter, and the Serpa holster retention device allow me to draw and engage as with a DA revolver, with the added feature that the retention release puts the trigger finger along the slide when you draw. I am aware that the Israelis train to carry without a round chambered, but I don't like the time it takes to rack the slide. Without a round in the chamber, the pistol is an inefficient club. I was trained that there are no accidental discharges, but negligent discharges, and I practice so there will be no unintended discharges, ever.