wimwag - my sympathies on your back trouble. It is a royal PIA!!
On your dropdown holster, is the lower end tied to your leg to hold it steady?
I have a 4" revolver that I have both a leather and nylon holsters that I change with the weather. As OC is impossible off your own property here in Illinois, I don't have much interaction with anybody. I modded both holsters so they could be lashed around my thigh, keeping the holster from following the gun when I pull up on it.
In addition to back surgery in the early '70s, I have arthritis slowing me down. Having the holster lower on my side means I have to "crimp" my shoulder and elbow that much less and clears the holster faster.