The Scorpius is a high speed ultra-long range fade driver. It is a step below the Quasar in terms of speed and fade, but will provide excellent distance and control for into the wind conditions. It's recommended for moderate power throwers who need something that will fade dependably and glide sustainably. It's best for Intermediate and Advanced players, but suitable for beginners if using lighter weights (Zero G plastic).
Sirius plastic is the ultimate combination of superior grip and die-hard durability. The Sirius plastic is what you want if you desire the best of both worlds. This plastic will last, and it will feel good along the way.
Note: These discs are the Gregg Barsby Signature edition Run 1.9 of the Scorpius.