Back problems (and old age) here, and mostly gave up belt holsters. Carry a Browning HP and 1911 in a Falco Roto Shoulder Holster (vertical carry). As mentioned in the article, it allows me to carry the gun and two extra magazines. One thing I do have to be aware of is that if I bend over to pick something dropped on the ground, you must be conscious of the possibility of the gun falling from the holster. The retention strap does not fully secure the gun. Summer weather pretty much limits the use of this holster, and really many other holsters when the weather gets to warm to wear a covering garment. Have considered a "pocket carry gun", but I'd need a bigger pocket.
If I am in the "boonies" I always employ the shoulder holster except when carrying my Ruger Super Blackhawk, but with that on a belt I use a set of suspenders rig to give it help. Most of the time though, I will use the shoulder holster for concealment as backup to my 12 gauge Benelli.