It seems to me if you fire a pistol a 1000 times without failure and all of a sudden you begin to have failures... somethings wrong. A broken extractor perhaps??? Have you contacted Beretta about them looking at it? Not poo pooing your issue, because I believe it's real.
I have a Nano, not a Shield, but I do have an M&P9C. One reason I didn't get the Shield is because I'm left-handed. I thought the trigger was a bit light to carry it with it chambered and the safety off. Now that I have my M&P (no safety), I probably could deal with that better.
My Nano is markedly more accurate than my M&P, but the M&P points naturally and feels good in my hand. I really love both of these firearms for different reasons. My Nano has been rock solid, but so was yours... until... I'd be interested in knowing if Beretta is interested in resolving the problem you experienced.
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M&PC FS BG Shield+ 642 686+
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