FWIW, I'm starting to think this (weight + comfort) is a problem with most military style packs. Take the Maxedition line for example. No internal frame. Even cheezy day packs have at least some supports to transfer weight to your hips.
For my part, small internal frame packs from someone like Arc'Teryx or Dana are looking attractive, even tho you lose the heavy duty materials and the attachment points.
Thanks for the report Matt!
-john