@PaulTon: Impressive! Actio = reactio.
An elastic ball hitting an immovable surface square will bounce back with about the same speed and energy and move back as far it would have moved on without the obstacle.
Now imagine a golf ball shot with the intention to land and stop on the green. It will have much less kinetic energy than it had 100, 200 yds out where it started. A thinkable remaining flight length would be 10 yds, and the ball is severely losing height. If not, it would miss the green anyway. This relatively slow ball hits a surface - the pin - with the energy to move on for said 10 yds, usually downwards. What do you expect after the bounce?
I expect, and get in reality,
- a bounce of about 10 yds. maybe a bit more if the pin moves against the ball or if it rolls down the nasty Augusta green,
- a bounce angle of < 90° in reverse direction.
I certainly do not expect a "bounce" with a small change of direction, towards the back of the green, nor a bounce with the energy to fly another 200 yds. Where should this energy come from?
Nah, WGT sticks act like granite, frequently injecting energy to the balls for their impossible far flights.