The Firebird is an overstable distance driver which works extremely well into a headwind. It is Innova's most popular upwind distance driver. Assorted colors. S9/G3/T0/F4 Champion: Designed for professional players, Champion line discs are usually a little firmer and more stable than the same model in other plastics. Whether used in heavily wooded situations, or on extremely rugged courses, Innova's Champion line plastic will continue to perform predictably and avoid damage.