Hi guys, I just discovered this thread. As I remember it, the ball didn't hit the glass with the first handmade ramps on the whitewood. When we installed the first vacuum formed ramps, from the aluminum tool, we noticed the ball hitting the glass. The production ramps are so much smoother and faster than the hand made originals. Anyway, everyone liked it so we let it happen. The story about not putting glass on until production is not true. We would NEVER let a game get all the way to production without testing it with the glass in place. Besides that, it's too noisy without the glass and it's easier to tune the sounds and music with the glass on.