Oops. Those options look a little thin!
I'm just playing around with some ideas and prototypes right now but later this year I might do a cabinet build. My thought was to setup a two player fighting style cab which my teen sons would be most interested in, but I'm considering a trackball in the middle. I'm old school so I enjoy the old 80s arcade games. I already threw together one 2 player panel using two zero delay usb-joystick encoders, but I might build a separate trackball mini-panel with the idea I'd eventually scrap it and use the parts for a full size cabinet meaning I'd want something of decent quality.
If I got the Ultimarc trackball, for example, I suppose I'd need to get a separate encoder designed somehow for trackballs or would a simple Zero D usb-joystick encoder work? I understand some of these trackballs can be hard to program but for now I'd just be using it in a straight forward manner with mame and only ever as single player. Games? I donno. Golden Tee, bowling, centipede, millipede, maybe use it as a steering wheel for certain games or as a shooter like in Crossbow.
Edit: for the track ball, of course I'd be bottom mounting it beneath the console so do they usually come with a sort of flange for a clean look? What other way would there be of doing it?