My preference is belt carry, even for mouse guns. It's become such an ingrained habit to reach to my 3:00 position, that a change in location would be ill-advised.
Every once in awhile, I will go to a cargo pocket (with holster) if I have to. And by have to, I mean it is 90+ degrees outside and there is now way to comfortably wear a concealment garment.
"The best diplomat I know is a fully charged phaser bank" - Montgomery Scott