Vass K1 GlowThe Grym has been plagued with production inconsistencies for years, and at this point no one really knows how the mold is supposed to fly. The Vass share the DNA of the Grym but the numbers are changed slightly to fit the current flight chart. It is a disc made to ride the tailwind in a smooth S line, and it will end its flight with a short fade. Vass is Swedish for sharp and the Common reed.