We go to the flagship Whole Foods in Austin. Great foodie store but with stupid 30.06,07 signs (sidebar - lots of employees think they are stupid too).
They have an underground garage and an officer (sheriff) directing traffic. She is wearing a new set up for my eyes. Her extra mags are in a setup a little in front of her nongun side. The three mags are in individual slots so they are not flat to your side but perpendicular to your body and sticking out at an angle. Rounds forward (away from you) - if I saw that correctly. Never saw that before - if get the mental picture. Is there an advantage to such? I dunno? It was sort of USPSA-ish except for the mags being close and stick out away from you.