The Discraft Elite Z Drone is a midrange driver with stabilities of 2.5 to 2.6 (extremely overstable). Disc golf players in windier places love it like no other for its ability to fight headwinds and not turn over. Very overstable, best for advanced players and forehand approaches. Rip it hard and don't worry about it turning over in a headwind.
Z plastic provides the truest flights as ratings are based on Z models. It is the most durable, longest lasting, slowest to season and makes a disc more overstable than D and X models.