Jim,
How you get 114 views and no replies is beyond me. You must be speaking a language only I can understand! lol.

I agree with you that a quality backpacking rig is a great 72 hour BOB and a good place to start for a long term survival package. I don't see a lot that a military style pack would bring to the table that my (circa 1997) Dana Designs Terraplane doesn't offer.
_________________________
"There is not a man of us who does not at times need a helping hand to be stretched out to him, and then shame upon him who will not stretch out the helping hand to his brother." -Theodore Roosevelt