Museum of the Game® & International Arcade Museum® Forums

I just designed a JAMMA adapter for Birdie King II and for some reason it seems a little weak when I send the ball horizontally left and right. I believe I wired correctly given it's going in the right directions so what's the problem? Bad sensor on the trackball? It's a standard 2 1/2" trackball by Happ I think.

I know everyone will be wracking their brains given BKII is the Zaxxon of golf games but personally I've always liked it.