OK, I have finally cleaned my Airborne playfield and one of the mylar shields had dirt under it (was not sticking any longer). I bought some mylar shields (stickers) and was getting ready to put them on. I see that my old shields are 4" in diameter and the old one was 3.5" in diameter. There are only three pop bumpers in Airborne and I don't think you will be able to see the difference if I don't point it out to you (it will be the one on the right hand side). So, a few questions:

1) Should I just install it?
2) Should I try to cut it smaller and install it?
3) Should I remove the other two and clean under them. The machine was super dirty and there is a little dirt around the edges.
4) If I do remove the other two, should I install new shields on all three or just leave all of them off?

Lots of questions but I am pretty new at this and really need the pointers. Thanks!

airborne_pop_bumper_(resized).jpg

Well, I just cut the new one smaller and installed it. I did not touch the others.