Quoted from SkyKing2301:Lighting up the entire playfield as you describe, is going to ruin Fly By Night multiball, FYI.
Actually, that's probably not true. Pinstadium connects to the GI lighting I believe. Houdini has perhaps one of the best modes in pinball... Escape from Beyond. When you start the mode, Houdini goes completely dark and starts a "search light" and strobing effects that is meant to disorient the player. The Pinstadium goes dark with the rest of the machine because it's connected to the GI. And... as I mentioned a few minutes ago in another, the UV flasher channel on the Pinstadium also interacts with that mode.