have done this mod with no success, so maybe you were referring to me. glad it worked for you though.
is the variator on that oldschool moby the same as what were used to with the 70s era 50vs? slap a varplus on there?
ive taken apart one real old variator that mustve come off something like yours and it was a bit different in design then the newer ones.
on a side note i took apart an old av something case (the case the older variator was on) and the transfers were already matched to the transfers on the cylinder. i thought that was kind of a nice touch.