As I said above.....
Empty your quiver of everything (including any pockets)
Take top and bottom of the quiver,and bend it double so the ends touch
Then loosely wrap the shoulder strap around the quiver to hold the ends together
Set it aside for a few days (or more)
Joe Skipp,fellow TradGang member,and good friend taught me that a good back quiver should lay FLAT against your back.This will "squeeze" the arrows together and prevent them from rattling and even from falling out.To demonstrate this he put a half dozen or so arrows in his backquiver,dropped a quarter on the floor,and then bent over (at the waist) and picked it up without a single arrow falling out.
When Joe goes on hunting trips,he "rolls" his quiver up and packs it in his duffle bag.
Hope this helps!!!!! Good Luck!!!!!