I own a G21, G20 and also a G30S. For colder months, I prefer the larger calibers. I have a G-Code synthetic paddle that handles both the G21/20 for use with a longer coat. If I am wearing a shorter jacket, the G30S in a kydex rig works well. Buy a decent, stiff belt and the weight of these guns isn't a problem, I use one from the Beltman, double thickness leather with a kydex stiffener sewn into it.
In the summer, I normally carry some type of 9mm. All these carries are OWB.
In the summer, I normally carry some type of 9mm. All these carries are OWB.