Okay, I looked into this two spinner issue some more today and came up with this for anyone else who's wondering...
There's not many 2P simultaneous spinner games at all!
Out of the games mentioned in this thread and from searching around (Mame, KLOV) I can divide it as such;
"REAL SPINNER GAMES" (Original cab's have spinner/paddle or like)
Blasteroids
Off The Wall
Warlords (up to 4 simultaneous)
"PLAYABLE SPINNER GAMES" (Work with spinner and pushbuttons)
Badlands
Super Off Road
Super Sprint
These are basically driving games where the spinner is substituted for the wheel on the original cabinet.
Please feel free to edit or add to these lists as required, it could be a good quick reference for the boards.
Note: I haven't included games like Puzzloop because although we know it will play with a spinner, no readily available proof exists that it used one. That is, there's no cabinet pics on
www.klov.com.
There are also games like Puchi Carat, Pop'N'Bounce that may work too (I say that because Mame has dial settings for those) but like Puzzloop there's not much information to go off.
If you think there should be a section for those, let me know.
So unless people add to this I guess I now must decide two things
1. Will I play any of those games listed above enough to install 2 spinners?
2. What kind of spinner should I get, weighted or geared?
Advice from those who already own spinners on Q2. would be very much appreciated.
Cheers.