Speed: 9 / Glide: 5 / Turn: 0 / Fade: 2
The Thunderbird is the disc that throwers reach for when they want the speed of a Valkyrie with the stability of a TeeBird. It's more of a seasoned Firebird: slightly less fade overall, and more straight flying. Higher level players appreciate the shot shaping ability of this driver while less powerful throwers will enjoy how consistent it is especially in the wind.
Any imperfections which make these discs F2 appear to be wholly cosmetic.