I have a Sig Pro SP 2009,the magazines are the ones that can use .40S&W, .357 Sig and .9mm, which is what its chambered for now. The mags "should" hold 14 I think, however when I load TEN rnds the mags are nice and tight and no rattling, as soon as I put the 11th rnd in it sounds like there is a rnd floating around in the bottom of the mag. Also when I load the mag , rack the slide chambering a rnd then drop the mag the next rnd is nearly half way out of the mag, time and time again leading me to believe it may not cycle properly firing the gun( havent fired it yet). I was wondering if this is simply a case of needing new springs for the mags ? Anyone ever run into this?