Yes, I know Jeff Cooper opined that there could be no such thing as a "double action only" pistol because he thought that "double action" meant that the pistol could be fired two ways. In this, he was incorrect, as the "double" in "double action" meant that the trigger performed the double actions of both cocking the piece and firing it as opposed to the single action of merely dropping the already-cocked hammer.
Anyhow, I spent yesterday morning at the range reacquainting myself with the DAO trigger on the Sig Sauer P250, which hadn't seen much use in my hands since finishing up the 2,000 round test in its .380 Compact guise early last year.
Still dropping a couple when I increased the speed, but a definite improvement over the previous day's performance. This makes 150 rounds of TulAmmo 115gr FMJ through the P250C with no stoppages of any type.