Hi everyone...I will pick up my third Sig the day after tomorrow - a P239 .40 cal (the other two are SP2022 and P220ST). Since it is my first compact, and with a 3.6" barrel, can anyone recommend the best SD ammo for this gun? Also, I've read a little about the Speer GD Short Barrel Ammo...anyone use this in a P239 and do you all recommend it for this gun? Any info is appreciated and thanks.