I can see trading off readiness in exchange for a situation which requires more effort to fire. Having children around might be one such circumstance. If open-carrying, it makes the possibility of someone snatching the weapon a little less of a concern. I've heard of law enforcement officers, who might find themselves loading and clearing several times a day, having problems because the round they repeatedly chamber has the bullet shift in the case.
I recommend that you modify the first of the four safety rules as follows:
Treat every gun as if it is loaded and has a round chambered.
You wouldn't want your practice of not chambering a round to cause you to become complacent when clearing the gun.
That’s why I like the revolver.
There’s no hidden ammunition, no safety, and a heavy pull on the trigger.
Please don't compromise this or any of the other established rules with an unneeded, superfluous modification.
"Loaded" means assuming that a round IS chambered. Treat every gun as such when you pick it up, whether or not you were the last person that handled it. Realize that a gun with closed action can discharge without triggering it. Hence ALWAYS pointed in a safe direction.
Perhaps you've never had basic training. If not, get it with a certified firearms instructor.
You proposed to amend the rule:
(1) Treat every gun as if it is loaded.
by making it read read:
Treat every gun as if it is loaded and has a round chambered.
You need to firmly and permanently strike out that addition, which is wrong and confusing.
Please do not compromise this or any of the other established rules with an unneeded, superfluous modification.