The Discraft ESP Buzzz is a straight flying midrange driver with a stability of 0.5 (stable to slightly overstable). In comparison the Pro D has a stability of 0.0 (stable). It has quickly become one of the most popular discs of all time. This workhorse is the golf disc that you'll reach for again and again. Throw it hard and the Buzzz will hold any line you put it on.