For those who have experience with this pack, has the zipper location caused problems with access to the inside of the bag? This seems to get good reviews but I am concerned I would get frustrated trying to find things in the pack while in the field. I realize I get add pockets etc. but suddenly I end up with 600 bucks in a day pack.

I don't want a dual purpose pack with an external frame that compresses as I will be using this as a carry on while flying.

Last edited by herschel34; 02/01/15.