I do not understand the reasoning behind switching from zippers to velcro on the Brain Cells. I can't stand velco being used on bags. Why? Because velco makes the LOUDEST noise on Earth with used in class rooms and offices! I avoid it for this very reason.
With that being said, I'm extremely satisfied with my Monolith (now called the vertical brain cell). I can haul my laptop anywhere within my backpack without any worries and the zipper is nice and quiet.
Now I'm looking to switch from a backpack to more professional looking Empire Builder. But now I'm kicking myself for not grabbing a horizontal brain cell when they used to have zippers! Tom, please bring back the zippers on the Brain Cells! Can you do a custom order? Do you have any NOS brain cells with zippers laying around? I'm loving the Empire Builder but I just cannot bring myself to use brain cell with a velco enclosure.