Quoted from MarAlb:
Thanks Gerry, nice to hear. And you can't go wrong with buying from Ed, he knows where he is talking about and what he is selling. I am currently working on some updates for the testroms. For system 80, you can test all the parts connected to the RIOTs, you can attach a driverboard now and test that as well. The Williams system 7 testrom has now support for Hyperball driverboards. I am doing some more testing at the moment and I am busy with updating the documentation.
Working on System 80 boards right now, I will be anxious to try the updated test rom, same for System 7, actually working on a Hyperball now. For those that are not aware, Marco has some great test roms he has developed, made my life a lot easier