Just to add to the dialogue…
A lot of late Innova-produced Discmania discs had the MADE IN U.S.A. tooling, so that didn't surprise me.
As far as other tooling marks go, they are removed and added all the time, so the absence of other tooling didn't surprise me.
As far as the flight goes…yep it's an FD (even if Innova calls it a Fairway Disc).
As far as the ethics, it's not something you'd do to a friend, but I hear they didn't part on friendly terms.
Here's my take:
Innova has the legal right, but the way it was done…man what a sleazy, vindictive, slimy thing to do.