I am hoping someone here can help me with a question. I have been fortunate enough to come across and purchase two Atlantis'. Both of my machines have a hole below the right lower plastic for a support pin (see attached photo showing an Atlantis playfield with the pin installed), however neither machine I own currently has that pin installed. Many photos of Atlantis also do not have this. It does seem logical that this pin should be there to assist with support as well as a bit of protection for the extended plastic. Does anyone have any information related to this? Does the pin have an an effect on game play?