The "small pocket pistol" I'm carrying and practicing with lately is an XDS 45cal. It surely fills the pocket but I've carried it daily for over a month, and I make it work. I carry the spare 7 round mag in weak side pocket. It replaces my PM9 most of the time.
I have a 442 (no lock) and I'm quite fond of it. However, I just can not shoot it as well as the PM9 or the XDS. It carries less rounds and I'm slower at reloads than the semi's. I'll not part with it and I will carry it on occasion. Can't beat a shrouded revolver for shooting out of the pocket and I'll not contest the uber reliability a revolver affords.
No one prays harder for peace than the soldier.
"We Dare Defend Our Rights", Alabama State Motto...