The Dwight Schuh pack is fine. Personally I prefer external frames for hunting, the newer external frames have really good suspension systems (much more advanced than on the Schuh) and padding to keep the pack from eating into the back of your shoulder blades. I have the Cabelas pack that has the pack that removes from the frame like the schuh but it is made out of much lighter weight material that is water resistant and very durable. It also has a freighter shelf which is really nice for carrying tent/bed roll/sleeping bag etc.
I picked it up on sale for around $235 or so, I would recommend looking into that before spending the $350 for the new Schuh.
Cool video thanks for sharing