I've been there. I too have purchased NS12 by mistake. The only reason I'd ever buy a Zyn is by accident or if it were like super cheap. You can get your cash back on those things, so no big deal. You could even keep it if it sounds alright. I've had an 18" Zyn. Seller couldn't see any stamp on it. I thought it was interesting, so I bought it. It sounded OK as a light ride cymbal to practice on, but I couldn't see myself playing it so I sold it on. I bought that cymbal with two other unmarked cymbals that were good XE Ajaha splashes. I still have them. They're nice!

I'd like to hear that NS12 pie. They can sound a bit... Deafening, but they're fun to play. Something different.