I live in the sad state of CT. I have a couple of "large capacity" magazines that I registered (Unwillingly) . I would like to buy a new hand gun BUT anything I buy now will be limited to 10 rounds. I am curious if my Sigma .40 magazines will work in any of the M&P models available. Or, any of the other S&W offerings, for that matter. Does anyone have experience trying them yet? Not just inserting them , but actually using them, repeatedly. I have seen mention of people inserting them, but no mention as to do they feed and operate correctly.