Quoted from gweempose:These games certainly weren't designed to easily swap stuff like rubbers, posts, plastics, etc ... I installed plastic protectors and Cliffys today. It was a pain in the ass, and I didn't even bother with the big protector that goes under the Warp ramp, or the one that goes all the way under the Vengence. Just to get the VUK Cliffy installed you have to unscrew about 20 screws and remove a good portion of the left playfield.
Hey Gwempose,
The Pinbits plastic protector under the Vengence is pretty easy to install. just remove the front 2 screws on each side of the entrance, then there are 2 screws holding the back of the right plastic in between the 2 left bumpers. Once you remove the right side plastic, just slide the plastic protector under the left plastic, then replace the right plastic and all screws. That's it and no more air balls!
Hope this is helpful.