Originally Posted by locutus
I would never dream of carrying a pistol cocked and locked.
If you practice, you can rack the slide as you draw, and it's lightning fast.
If you ever saw old time military police draw a 1911, you would realize that there is no need for cocked and locked.
And hammer down on an empty chamber is the safest mode of carry.
Hammer down on an empty chamber is the safest? Yes -- until you need it and then it is also slower. It doesn't matter how much you practice drawing and racking the slide, you are still adding a much longer step to the process than drawing, acquiring the target, thumbing off the safety and firing. Anyone who is well practiced in condition one carry will have at least one round in you before you complete your draw, rack/raise, sight acquire and fire.
If he were still alive, I suppose you could argue your point with Jeff Cooper (aka the father of the Modern Technique of handgun shooting, and one of the 20th century's foremost experts on pistol craft).
"Condition Three: Chamber empty, full magazine in place, hammer down.
Condition Two: A round chambered, full magazine in place, hammer down.
Condition One: A round chambered, full magazine in place, hammer cocked, safety on.
Condition Zero: A round chambered, full magazine in place, hammer cocked, safety off.
Some of these configurations are safer than others (for instance, a single action pistol without a firing pin safety such as a transfer bar system should never be carried in Condition 2), while others are quicker to fire the gun (Condition 1)." - Jeff Cooper
Your proposed method also only works if you have both hands free and can get a solid grip on the slide. How are you going to draw and rack the slide if one hand is restrained, wounded or otherwise disabled? What if your hands are wet and the slide slips in mid rack or you just short stroke the slide under the stress of an attack (stress can severely short-circuit fine motor control after all)? (Look up U.S. Marines condition black for reference). Condition one requires fewer movements and muscle actions to screw up...did I mention it's faster?
Before you claim your method is "lightning fast" you may want to try running all the variations of the Tueller Drill. That set of drills will teach you exactly how fast you're not.
"How many times have you seen a movie actor with his 1911 entering a room hammer down? They don’t work that way, my boy." Wiley Clapp