I have one in my Bally Star Trek, and they're really cool, but I must admit, I have trouble telling what it is when playing. I just can't see the insignia really, so not sure it's really worth it. It has to land in the shooter lane at rest just right to really get a good look at it. In a darker game, i can see where game play might be hard with the balls difficult to see. My $0.02.