Why does it shoot?

I guess because sheer willpower makes the ball not hitting the stick and/or not entangling itself in the pouch.

Shoots great, you can make it in no time. Butterfly style of course, very accurate.

BTW the groove in the stick is because this is my draw strength test stick. I put my scales ring around the stick, secured by the groove, then I draw with a a length of string and a pouch that contains a steel ball. This way I can find out my maximum draw weight. I can do about 65 lbs (30kg), surprisingly low. I can draw out my 70 lbs bow with absolute ease, and I question if the 70 lbs are really based on an honest manufacturer spec.

I recommend testing your personal draw max this way, it helps finding the right band strength when you want the maximum power.

Jörg