Does the Wico Trackball (2.25" and 3") work with Happs trackball mounting plate? i.e. without drilling any additional holes in the plastic housing of the trackball case?
I had to
redrill the holes in my 3" wico to enlarge them to fit the happs mounting kit (the one without bolts showing on top), but that's not the same as drilling
additional holes. The holes are in the right place, but the happs mounting kit's "nuts" hanging off the bottom are just a
little too thick to fit in the wico holes. 13/64" drill bit should do it, but I think I used a 7/32" bit.
If you get the happs mounting plate with the holes in it instead of the kit, you shouldn't have any problems (besides the bolts showing on top of you cp

).