Way back in the day, we didn't use two-handed shooting stances. One-handed shooting was mandatory for qualification on the PD range and, for some odd reason, we never did any two-handed pistol shooting. Didn't even think of it. Shooting now days is basically a two-handed affair, but isn't one-handed shooting still a good thing to practice? After all, it's not always possible, or even desireable, to shoot two-handed in an up close and personal self-defense situation.