I agree this is an ingenious design that needs only a few tweaks to be perfect.I'm pretty sure if y'all made a Focus styled bag that held 14 discs it is the bag I would carry. I've ordered the all black Focus but I can't figure how to cover all my shots with 10 discs.
I love my Focus though it hasn't arrived yet, I think.
1) Replace side zippered pockets with bottle holders
2) Make a front zippered pouch big enough to carry a couple extra discs if you need more than 10 but will also give you a great storage option if 10 discs is all you need.
With the addition of the front pouch and side bottle holders this bag would probably be able to stand upright as well which would be another upgraded feature.