Gunguy,
Please allow me to add my two cents.
First, I don't own a BG, but when I do pocket carry, it is either a G42 or a Sig P365-380 (without the thumb safety). While I do have a P365 in 9mm with a thumb safety, it is never pocket carried. Personally, I find that the thumb safety impedes a quick draw from my Vedder Pocket Locker.
Concerning carrying with a chambered round, do you drive your car without a seat belt on in the belief that you'll have time to put it on if you are having an accident? This past September, I attended the Adaptive Defensive Shooting Summit, and my chosen training class was Defensive Shooting Skills, which put me in the shooting house. In my second scenario, as I rounded a corner, a knife wielding aggressor turned the corner and we were no more than 4 feet apart. From facing and identifying the threat to the firing of the second round took no more than 3 seconds. That involved identifying the threat, drawing, putting the pistol on target, and firing 2 lethal shots. This particular FTX proved that I wouldn't have time to rack the slide or decide whether or not to shoot.
As an FYI, I've been shooting long guns and pistols for the better part of 50 years. I started with a 1911, and started shooting combat-style matches about 6 years ago. I shoot both revolvers, SA and striker-fired pistols. You need to be comfortable and familiar with any handgun that you choose to carry for self-defense. That may vary between a few weeks versus several months, depending on how familiar you are with shooting. The bottom line is that you need to practice and possibly get some formal training at a minimum. It's an added bonus if you can get some force on force training!