But everyone paused before pulling the trigger to check the sights. The instructor kept hammering us to shoot as soon as the gun was mounted. Your subconscious mind works one-third faster than your conscious mind. It knows what a good sight picture looks like. You don't have to take the time to look.
Speed is only one advantage.
Once this mounting technique was well practiced, we went into an indoor range. A single light bulb in the next room cast a faint glow on the range so you could just tell where the targets were. You could not see the sights. Yet, from the ready position, everyone in class put every shot on center mass. Police officers practice reloading their pistols quickly.