I would try to PM emphatic, he seemed very much into this game, that's how I learned about it's existence. I'd love to help, but I'm not good at it. I believe he posted a link to a youtube video in one of his threads, and it was a long game, so I'm pretty sure he's scoring high.
Btw, did you try the usual, like higher or lower version of mame or perhaps mame32 over regular mame?