Just a few thoughts to toss out to the Bride's faithful.
I found that the RH loop lights would not activate. I checked the connector and they would activate and then after a game or two, extinguish. I figured that this would be the time to try my hand at reflowing the solder on the pins as it probably had some cold joints. Since it is a small pcb, it was easy to get out and sure enough......3 cold joints. It was not hard at all to flow them with a new soldering iron. I kick myself for not buying a nice upgraded one years ago. Installation made it clear that the problem was the joints as it now lights up just great.
Now I have the problem of lamp 22 not working. It hasn't worked since I got the game and I need to trace its problem out. This is the light under the insert for the Billion....not the big flasher but the top lamp in the circle. I looked in the backbox at the J133 and J137 connectors to make sure they were seated and that wire #2 on both appeared fine. I changed the bulb with a known good one but no love. It was late and I buttoned things up for the night. More to come....it bugs me....lol.
Plastic protectors under your plastic pieces work well and look nice. However, they can have clearance problems with gate wires and spinning targets. I had to trim the wire gate end on the Jet Entrance...the one that makes the ball move to the side when coming back down. Its end would hang on the protector near it if it moved to the far side. Easy fix. Now I see that my heavy spinning target (in the same Jet Entrance) will actually spin over to one side and lay up on a protector edge. Again, easy fix but it has taken a dozen games for the problem to pop up. I should have moved everything around and checked when installing them but you know how it goes.....pretty shiny things....must play.
Finally......I got my high score today at 47,356,680 and it felt good....even with my lamp 22 dead to the world. I never made it to Metamorphosis once but the loop combos were insane. The playfield and backbox were a hoot when everything starts flashing....made me glad that I went to LED's and silicone rubber for the posts and flippers. Good times!