Originally posted by T Sunstone: I bought the 1850 with plans if I like it to get the 5200. You can take the carbon fiber frame off if you like but I'll always have mine on for when I get an elk down. This will be for elk hunting only, I use a fanny for all other hunts. You don't need to carry a separate day pack all you need is to buy the 1850 pack, it fits on the same frame and harness. I'm going to buy the 5200 bag only for $180. Pack in with the 5200 and carry the 1850 bag in the 5200. Take 5 minutes to change bags. Waiting for a sale to but the 5200.