I tend to agree with rammerjammer, and i'll add a bit as well. A striker fired firearm (or single action) such as a 1911 is made to be carried with one in the chamber, ready to go, in a good quality holster that covers and protects the trigger. The reason is, is that when you need the pistol, you very may well slip, fumble, or short stroke racking the slide (jam) or leave your finger on the trigger while you rack the slide,(bang) too many variables.
Likewise for gimmicky holsters that put the gun in a bag tied to your belt that rests against your thigh ?, or the one where you insert a pencil like rod into the barrel, tied to a string, looped around your belt, or the one that looks like a cell phone case (not sooo bad) or the rubber trigger plug...... all gimmicks for those that are basically afraid to commit to carrying concealed, lest they be judged by their peers.
If you need to carry a gun, buy a good quality holster, wear appropriate clothes to conceal it, and carry. Thats it.
This is the blunt truth about your situation OP. You don't have a mechanical problem. You have a mental one with not trusting your firearm.
If you're not prepared to carry chambered you're not ready to carry a gun, period.
You can poke around your perceived issue this way or that way but it all comes down to you and whether or not you are mentally prepared to carry or not.
I couldn't agree more with the to above post, and no they are not your ready for prime time answers, May not be soothing to the ego either.
Fact is if you don't have one in the chamber your kidding yourself, and the people you may have promised to protect.
People like to create scenarios in there head they can live with, folks don't like thoughts that make them uncomfortable.
So we dismiss things with thoughts like:
oh that won't happen to me, or I will handle that when and if it happens.
Fact is you will not.
You will default to the level of training you have mastered.
I can show anyone with a will and a mind to learn, in 3 minutes how they can get killed quick with an empty chamber.
It's not about fancy holsters, polished guns, or a new set of grips.
It's about mental attitude, a will to survive and hours of training.
Snap caps and dry fire are all good things to do, but not a substitute for live fire on things other than a paper bulls eye target at 7 yards.
buying a gun and strapping it on without the proper training ( hours of it )
makes you ready for very little.
It's just the way it is, my state has open carry and constitutional carry.
I see many, many shooters and the level of proficiency is pathetic, but the amount of no-it-all's is staggering.