lol jax sent me one of those slings some years back.
They take some getting used to.
Both david and I nearly smacked ourselves with it. David ended up with it wrapped round his throat at one point !
You take for granted that the release cord stops the sling from coming back at you - with these captive release slings - nothing slows the cord down !
So it just keep on going and ends up coming right back at your head.
I'm tempted to dig it out again and have a play with tennis balls - we lost the baseballs that came with the sling
It is a great concept.