The early M&Ps had some striker issues, but the newer ones have been reliable. We havent had a single hiccup out of either our M&P, or our XDM, both in 40s&w. For self defense, DA triggers arent a bad idea. The stout trigger pull is probably going to keep you from jerking off a round when you are caught off guard and panicked, JMO. I shoot 1911s extensively, and they use a single action trigger. With a little practice, the striker fired guns can be shot with good accuracy. Go to a gunshop and try them all out!