Hi folks. Please excuse my ignorance here, but I just bought a sig 239 and never thought I'd have anything but a revolver. I love it so far, but after I finish breaking it in, I'll need to know how often you keep the same rounds in the magazine. Do folks not keep them full all of the time? Do they rotate their full magazines and how often etc... Just how long do they store a full mag before the springs lose their tension? Any info is much appreciated since I don't personally know anyone who uses one. Thank you.