I think I know the answer but I wanted to make sure.  
The history.  I have a JAMMA based multi-game that I just put together in a generic cabinet.  Originally the cab had an 8 way WICO stick.  When I re-did the CP with new art (Thanks MAME Marquees!!) I used new buttons and a HAPP Super.  Well, I don't like the 8 way on 4 way games.  I started looking at convertible sticks such as the Mag Stik.  I want something I can change from the top as I plan on putting what ever I get in another game my family uses at my parent's house.  IE - I want something that is east to change from 4 to 8 while keeping hands out of the cab.
So, the question.  Are the mounting dimensions for a WICO and a Mag Stik the same?  By eye, some "loose" measurements, a few metric to inch conversions, and comparisons to this - 
http://www.ultimarc.com/controldiags.html - they look to be different.  In reading some reviews I did find a site where the reviewer had a problem.  There was no time reference so I could not tell if the current Mag Stik as the same as the one reviewed.  That person made a new top plate for his Mag Stik.  I could do that as well (I would probably just take a Bob Roberts Joystick template and use it as a starting point.) but I would prefer to get something that just works out of the box.
I am also open to suggestions for other sticks.  Frankly tension and throw are not that important to me.  My only real requirements are : Top changeable, I want an actual diamond shaped restrictor in 4 way to keep me out of the coroners, and I would prefer bolt in replacement for that I know as a “standard” WICO bolt pattern.
Thanks
Brent