The Thunderhorn are nice quivers. I have been using the strap on Great Northern for years. I have one that attaches to the limb bolts on my Morrison Recurve.
I like the strap on so I can move it from one longbow to another or put it on some of my selfbows.
Good luck with the Thunderhorn.
Mike

You don't quit playing because you get old, you get old because you quit playing!