The Hatchet disc from Westside Discs was PDGA Approved as of 10-28-2013.
"Westside Hatchet is a traditional understable control driver that is based on Westside Underworld's upper mold. The new lower mold makes Hatchet faster and less understable compared to Underworld. Westside Hatchet's flight ratings are 9, 6, -2, 2." - by Westside Discs