DUG,
it's interesting the different approaches people have to packing. I like heavier things to be very secure. Don't like any flopping about, iffin you know what I mean. I strapped my tent and daypack to the outside of my pack.
It doesn't flop around when I tie it on. And, my snacks are in a handy spot. I'm by no means a bear can expert, I'm rarely in a situation where it's needed and only once did I bring it when it wasn't required - (Meysan Lakes).
One pack I use it fits best tied to the back, another it fits best on top. Usually it holds all my small hiking crap in the closet though. It works great as a sink, chair and washing machine though as others have said.................................DUG
