What is the correct way to get these configured in MAME so they can co-exist? Set spinner games to use Dial and 270 games to use Paddle?
The spinners show up as mouse X-axis and Y-axis.
The wheel shows up as a gamepad analog axis.
If MAME sees both mouse
and analog control inputs, games like Warlords will accept input from both by default.
Go into the "Input (this Game)" menu and re-map the input(s) to whichever control you want to use in that game and they won't interfere with each other.
While you are dong that, be sure to set the "INC" and "DEC" inputs to "None". (Enter then ESC)
Scott