Congrats on the record! Yeah, they're picky about not showing the PCB, as you could be running MAME or a modified board or something. On one of your older postings, I definitely know they accept JAMMA games, including older PCB's with JAMMA adaptors. A friend who has a couple records on a cab he built himself (basically looks like a countertop cab). He wired it JAMMA, then bought JAMMA converters for his PCB's. He has the D2K record, and Moon Patrol (until a couple days ago) using it. All those JAMMA converters do is change the pinout of your PCB to fit the JAMMA standard anyway, so there's not really any shenanigans in them.