Xtreme

The Xtreme is a discontinued overstable utility driver rated 6/3/1/4: +1 turn, low glide, and a hard fade, a meat-hook profile from before "overstable utility" was a standard lineup category. Headwinds, forehand flicks, and short dogleg hyzers were its work.

Nothing about it is subtle: the flight starts left-leaning and finishes harder left, across a wide range of power and wind, which is exactly what its users wanted.

Certified in early 2000 (PDGA cert 00-02), it predates most of the modern overstable-utility class. After leaving the standard lineup it resurfaced in occasional special runs, which is why Signature Z Line and Tour Series Z stamps circulate alongside Big Z copies.