Yup. The Piranha was around for most of the 90's. Almost nobody bought them. They were one of the "stock 10 at the beginning of the season and let them sit around" discs at the shop I ran. They actually were one of the worst selling discs I had, and lids in general were poor sellers. Polecats, Rattlers, Upshots and Super Puppies all collected dust in that shop. The old pre-thumbtrac Birdie was the only lid that I could sell, and it mostly sold due to the pot leaf disguised as bird feathers on the stamp. :\
I love throwing lids, though. Maybe the market has changed enough to support a disc like the Piranha now. I just understand why Innova has no interest in being the company that finds out. Somebody is really going to have to want to make that disc for it to happen.