I have and use several lumbar packs. The one thing I don't like is that they are a little strappy since it uses a strap or straps down the back to support the bag. I find that they can be harder to manage than on a daypack. I have a smaller Cabelas lumbar pack that I use to walk to blinds and treestands and a Tenzing 1250 I used for walk in hunts for a few years. I went back to a daypack , a Badlands 2800 that I liked and used up to this year where I might need meat hauling capabilities so I went with a Mystery Ranch Sawtooth 45. I looked at the MR Pop-ups but I didn't see what they really did for me the Sawtooth wouldn't plus I try and limit moving parts in my equipment where I can.
