The compression straps are keyed so you can use the pack without a Talon. They will hook to the corresponding side. i.e. the left side straps have male buckles, the right side has female.
Without a Talon I hook the middle straps to the bottom load shelf then you can hook the top and bottom straps horizontally, or you can cross them to form an "X".
I think most folks will opt to use a talon. The Flat Talon is only 4 oz, has a pocket, and you can affordable get different colors - such as blaze orange for rifle season.
