Quoted from chucksmith:Maybe Little Shop of games can chime in here. In the photo, you will notice this wont work from the Premium LE since the ball drop looks like it will hit the protector. (unless this is an optical illusion), but since the bigger one offers both options, it only makes sense that there's a need for both.
I have these installed and haven't had any issues.
The air ball preventer for the left ramp snapped at around 80 games. The plastic is brittle. I made a replacement out of plexi using the old one as a template. I think the plexi has enough flex to hold up.