I'm planning to buy a Brain Bag soon, because the amount of gear I'm carrying for work has just increased. (A 13" MacBook and a digital SLR camera with two large lenses, along with some other things.) I have a Super Ego that has served me very well (love that seatbelt buckle!), but it's time to upgrade to something better suited to what I'm carrying.
I already have a horizontal Brain Cell for my laptop, and see that the Brain Bag accepts both horizontal and vertical. How well do the horizontal Brain Cells fit, particularly in Size 6? Do they hang high, with a lot of empty space beneath them? Is the Brain Bag wide enough to hold a horizontal Brain Cell naturally, or does it stretch a bit on the sides?
It seems that if the Brain Bag can accept both horizontal and vertical without stretching, then the horizontal Brain Cell would be a more efficient use of space -- there would be more room at the bottom of the bag where "stuff" lies.
Does anybody else use a Brain Bag backpack with a horizontal Brain Cell?