Two things:
Make sure that you have the latest magazine follower. It is the rounded one... Not the more angular dog-legged follower.
Make sure that you have the new "flat" recoil spring. The original is the rounded spring type and does not hold it shape or tension very long.
Both of these items can be obtained through Sig CS for free. Call them and you will have the replacements in less than a week.
The only problem I have is that they're a LITTLE big for pocket carry for me. That said, a good holster conceals them quite well IWB.
I am coming to grips with pistol size, for me*** pocket carry = Ruger LCP & Kahr P380, Pretty concealable = Sig P238, concealable = Kahr PM9, anything larger for personally is just not concealable
LLDJR sounds like you have a winner,I might have to try it.