I kinda thought what the hell when I got it all out of the package. Once I got it on my pack, and positioned correctly I found it to work about as well as carrying in hand, except it doesn't wear my arm out. I had it adjusted so it carried my riser at the bottom of my pack belt, also used both the hooks. Rear hook on the riser as far back as it could go close to the limb pocket, front hook right above my sight. This carried the bow forward with the handle just infront of my hip. Never had issue with the riser hanging up in the hooks, lift straight up and it came right out. I did have my hand on it a fair amount to keep it steady, didn't need to all the time just kinda became a resting place for my left hand.
Just how I found to use it. Definitely something I'll continue to use.