I occasionally pocket carry, mostly in the winter and spring/fall jacket weather. I carry a lot of stuff in my pants pockets, so I don't pocket carry in my pants, plus it is usually a slow draw from pants pockets.
In the winter, I often carry in a coat pocket since that is easier to access when driving than IWB strong side (my usual carry). It is also quicker than trying to get through the winter layers to get to my IWB even when walking around. I also like to carry revolvers at times, and I like that I can double my capacity by carrying one IWB and one in my coat pocket. In warmer weather, I do occasionally carry in a pocket (especially when carrying a revolver in order to double or nearly double the round count). However, it is rare since that means losing a lot of the stuff I usually carry around.
I never have to worry about pocket carry for "deep concealment". Some people carry at work even though they may be disciplined or fired for it. I am a teacher in a state where a CCW permit doesn't allow carry in schools, so I would be arrested if I carried at work and was found out. So, no matter how concealed, I don't carry at work, negating a common reason people need pocket carry.
My choices:
A S&W 442 in a High Noon Holsters pocket holster
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A Taurus 856UL in a Simply Rugged pocket holster
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