Probably a simple question, but here goes anyway:
The IPac is used for the joysticks/pushbuttons, the Opti-Pac is used to connect spinners/trackballs, yes? Can the Opti-Pac be used for buttons/joysticks/spinners/trackballs, or do you have to purchase both 'Pacs' to connect all these items? The spinners/trackballs can be accompanied by 1/2/3 buttons - are these connected to the Opti-Pac? If so, does that mean other buttons (specifically player 1&2, coin, 6 standard arcade buttons, pinball buttons, etc.) can be connected to the Opti-Pac? Both items look very similar and look as though many buttons can be connected to them.