I'm a "has been" bullseye pistol shooter. I've always been able to shoot a double-action revolver better two-handed and I always shot them double-action. I never shot my bullseye pistols two-handed, so I can't comment on those. I definitely can shoot much faster with self-defense pistols two-handed, but their accuracy isn't nearly as good as bullseye pistols. Accuracy really boils down to marksmanship fundamentals. Bullseye shooting really helps to instill those fundamentals. Trigger control is king in all kinds of pistol shooting.