I would try the Axis if you're looking for a Buzz-like disc. I don't think that MVP makes a disc that would replace the Stalker. Keep in mind that the Axis does not handle OAT like a Buzz, so there will likely be an adjustment period. However, I find the Axis to be a bit more versatile than a Buzz once you get the hang of it.
Destroyer | PD | Firebird | Teebird | Leopard | Gator | Roc | Comet | P2 | Magic