Thanks Mack.
My loop doesn't stick out that far. It's more flush with the rear of the quiver, but I can see it would be an easy fix just to tie a piece of nylon rope to the D ring to form a loop which I could use to hang the quiver.
Still, the quiver doesn't hang vertical to the tree with that application. I was referring to just a leather tab sticking out from the end of the hood, with a hole in it enabling the quiver to be hung on the hook, completely vertical with the tree truck. I like my fletches pointing down. Just the way I'm use to doing it.