I have two approved personally owned weapons (POWs) on the books with my agency: a G19 and a G26. Currently both guns have iron sights and the G19 has a TLR-7A mounted. Off duty, I carry the G26 about 75% of the time and the G19 about 25% of the time. If I’m carrying the G19, I’ve got a 24rd magazine as a reload. If I’m carrying the G26, I’ve got a 15rd magazine as a reload. It’s generally the 15rd magazine from the G19 because the G19 gets the 24rd mag in it and becomes the nightstand gun when I get home from work. I know that I shoot the G19 slightly better than the G26 but I’m willing to sacrifice that extra capability for the easier concealment and slight increase in comfort most of the time off duty. Based on my lifestyle I believe I’m more likely to need to use a handgun while working than while not working. There aren’t too many typical off duty/CCW situations in which a G26 wouldn’t be capable of solving the problem but a G19 would be.
Once I’m authorized to carry the G19 with a red dot on duty later this year, I’ll likely end up carrying it more often off duty though.