Ok, Thanks for sharing!!!
However...Why would you want to "prevent" the quiver from sliding down your back??? This is actualy what helps keep your arrows frow getting hung up on brush and such when waking through the woods.
Actualy, experianced backquiver hunters use a combination "sideways" bowarm forward "sneek"... and the "backquiver bump". When walking through cover, you angle your body sideways,bow arm forward, with the fletching of your arrows low behind your string hand shoulder. This pretty much eliminates your arrows getting hung up. If you need to reach an arrow in your quiver, you do the backquiver "bump"... Take the elbow of your bow arm, and gently "bump" or push the bottom of your quiver, up behind and around your back. This will put the fletching of your arrows right up over your shoulder, beside your head, and in easy reach!!!
It takes alittle practice... but is very easy to learn!!!!! Soon you will be using your back quiver like it has been a part of your body all your life!!!
Good Luck!!! Shoot Straight!!!!!