I don't have a specific recommendation for the OP, but just want to say you should absolutely NOT do what bnrstnkr's post above suggests. It is horrible advice.
I know nothing about the Sting mold, and very little about Discraft's CryZtal plastic. Perhaps it is a fantastic disc. But I highly doubt it is unique (because almost no molds are), and there is absolutely no reason why anyone should be buying a single run disc for the OP's situation. That is a recipe for heartache when the disc is lost or beats in, and then you're right back here looking for a replacement. Limited run discs can serve a purpose. Doing a run in a more stable plastic is a nice way of allowing players to add a stable bookend to a cycle of an already beloved mold. But to recommend an expensive disc that isn't going to be replaceable, when there are likely a dozen other options instead? Sheesh. Worst internet advice I've read today.
I know nothing about the Sting mold, and very little about Discraft's CryZtal plastic. Perhaps it is a fantastic disc. But I highly doubt it is unique (because almost no molds are), and there is absolutely no reason why anyone should be buying a single run disc for the OP's situation. That is a recipe for heartache when the disc is lost or beats in, and then you're right back here looking for a replacement. Limited run discs can serve a purpose. Doing a run in a more stable plastic is a nice way of allowing players to add a stable bookend to a cycle of an already beloved mold. But to recommend an expensive disc that isn't going to be replaceable, when there are likely a dozen other options instead? Sheesh. Worst internet advice I've read today.