Has anyone seen this pack from Blacks Creek? It is a backpack designed to hold both your double bull blind and your bow plus it has other pockets for accessories, not sure if it is even available yet. Looks like a dream come true, those double bull blinds are nice but a pain to carry around.

They make great packs. That is the same brand that my buddy Parry uses for hunting in the Trinity Alps in Northern CA. He has never complained about them.

You may also want to check out this company.
http://www.wolfpacksystems.com/

They have a main pack that you can attach all kinds oftheir attachmentsto and it is built with very strong material and the internal frame is very sturdy. It is the pack I have been using for 3 years.