I leave my mags loaded and locked. Rather have it ready when needed. I leave all my mags loaded. Never gas any issues.
Since its about XD mags. Does the XDM have extended mags available? or do they plan on having them available? my 16rd is alot but isnt more better?
Brownell's sells a magazine extender that give 4 more capacity making it a 20 round mag.http://www.brownells.com/.aspx/pid=24362/Product/SEMI-AUTO-XD-PISTOL-EXTENDED-MAGAZINE-BASE-PAD