I own an Addams Family Gold pinball machine (411). It came with an LX2 U6 ROM, an L1 U15 sound ROM and an L1 U18 Sound ROM. Are these the latest ROM versions? I saw an LX3 U6 ROM, but I’m not sure if it applies to the Addams Family Gold machine (or it’s an upgrade for the standard Addams Family machine). Any guidance would be appreciated.