Vertical vs. Horizontal pack?

[trains are bad]

I need a pack for my qloader and am getting a M-pack. I'll probably carry 4 magazines. Should I get a vertical or horizontal? Profile and mobility are really important to me.

[SuiciDal Sn Y p ER]

vertical - you don't have the pods sticking out from the sides

[Torbo]

vertical. It generally reduces profile, and you can carry more pods. And theyre easier to pull, with less of your arm sticking out when you pull them.