[ShelledPants]

Firstly: I don't support carrying multiple pistols. It's more effective to carry one pistol and lots of ammo.

That said:

I would carry the primary pistol on/behind the right hip (Right handed), and the secondary pistol in front of the left hip, FBI cant, for a right handed draw. Then run all of the mags on the left hip and to the rear of your back.

Oh, use two pistols which can interchange magazines (Two 1911's might be a bit bulky... but maybe a Glock 17 on the right, and a Glock 26 on the left... using Glock 17 mags)

The concept is that it's faster to transfer the primary to the reaction hand, and draw the secondary, than it is to reload... I find this statement ridiculous... but it's the only reason to carry two pistols. If you're under the impression that firing two pistols at a time is more effective... you are wrong and there is no argument. Unless you are John Woo. He can get away with it, because he only reloads in the editing room.

It's something I've thought about, but never found practical. After dumping the two pistols of their ammunition, assuming you've survived, you now have to reload BOTH. Holstering one, reloading one, holstering that, then drawing the first, and reloading that. In which case, 9 times out of 10, the baddies have found you with your pants down and plinked you full of plastic.

It's just so much easier to run one pistol with many magazines.