Hehe, i know the feeling, I had our robot shoot me a few times just to see what it felt like (In the chest, yes i was wearing safty glasses).
I also got the job of acting like the ball return of the center goal during a test session
That was interesting also!
So i see how it works, But your not launching using the arms that are moving the balls correct? I cant tell whats shooting the balls, or is that by design?