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Here’s the situation; I have a 4P Simpson’s arcade jamma and a 2P cabinet. How can I convert it to the 2P version? On the board I can see the 1P, 2P, 3P and 4P roms, so do I just need to get the 2P version roms and plug them into the 1P & 2P slots? Anyone know a place to purchase them? Thanks.