Your next project should be to play some pinball rather than work on them ;)
I hear Ya! .
Actually I have hardly done any work on them for the past 2 years , other than routine maintenance . Time to roll up the sleeves agaon and get stuck in .
At least in a few weeks I will no longer have a mess in my arcade space so will be able to play any of the working ones any time without have to move crap off them first !