Hi tivogre, I have similar setting, but would like to have it to the exact specs, as I would like to go from MAME to real arcade game, if necessary. It is kinda important to me, as I would like to beat the official record that was established using MAME and, eventually, take a shot at the long standing one on the real arcade. I have unfinished business from 20 years ago when my score was pretty close to that record, but I had to go home and wasted two or three ships, basically, so I could write my initials (and not someone else, if I left it). Around 30-40 more minutes and the record would had been mine (but at that time I did not have access to this kind of information). Anyway, next couple of months, if I have time, I'll be spending getting back in shape and then we'll see what happens. If I can find a real arcade game locally, then I could try taking a shot at the real thing as well, so you can see that anything other than the original spinner/ship ratio will not do.