Quoted from Frippertron:I was wondering if it is considered sacrilegious to replace the plastic spinners in games like Genie or Sinbad with a metallic one like on Robo War?
I wonder if the after market MPU boards process switch closures faster or not?
What parts compatibility are you wanting to know? Much of the mechanical hardware was totally redesigned by Gottlieb engineers PRIOR to the SS games being made (Flipper assy, pop bumper mounts, lock down bar etc.). And all the same mechanical parts were used to build either type of game other than the electronics vs relay logic.
Overall, it wasn't until Premier entered the picture that some assemblies were again redesigned to make things easier to manufacturer thereby lowering the price of the assemblies (ie Drop Target Assys).