After years of working on restoring a 70 Dodge Challenger I've decided to turn some attention to my Riverboat Gambler. Electronically the game is pretty sound. A couple of the items that I want to address are in the cabinet and repairing some of the gouges, the legs/levelers and the coin door. So that brings me to this question. I have seen pictures of the riverboat gambler with two coin slots and like mine with three coin slots. I may have even seen one with one coin slot. Why the difference? Did Williams make them with different coin doors? If so why? What would be the coin door that the RG would've came with from the factory? Why do I have s hole drilled in my coins door?