2 in 1 JAMMA adapter. Which one?

[smonroe]

Looking at adding an ArcadeSD to my JAMMA cab currently running a Blue Elf 412 vertical. Since I don't want to lose Qbert and a few others, I was looking at a 2 in 1. I know Mikes Arcade is the better bet, but my system doesn't have a 2 player button (it's wired as the player 1 second fire button). jammaboards version looks good with wireless switching, but I've read about video quality issues. Then there's the one from Holland Computers with a funky rocker switch.

Anyone have any experience with these (or an opinion)?