Pretty good article. I've used a version of this carry when I've found myself in very bad parts of town, walking from a crummy parking spot to an event. Even greeting a stranger at your door with a magazine or bag concealing a firearm in your hand can give you a huge advantage should things go South.
I know this isn't my first post regarding the new Glock G42 but the positive reviews just keep coming. If you like Glocks, and I admit that I'm a recent convert, this is a great carry option for most people wanting a very concealable option.