well i mean you can feel the square of the microswitches when you spin the controller, as a comparison, the Happs Super Joystick is smooth all the way around.
Anyways, some monitors are more sensitive to magnetic fields. That monitor that I had, I had it in my basement, and over half the screen was purple/green, I even got a manual degauss coil to try to fix it, but no go. When I gave up, I moved the monitor, and the purple blotch moved! I moved it around the room, and found a corner that almost the entire monitor was ok. I bought 2 more arcade machines and placed them in the room, they didnt have any problems with the magnetic fields in that room. (basement where the breaker box was) :O
The magstik is having problems with my original cabinet. :O