The Xero slots between the Big Bead Aviar Driver and the Aviar P&A giving you torque resistance without a lot of low speed fade. This creates the ideal go-for-it putter from Circle 2 and in. Flight Ratings: Speed 2, Glide 3, Turn 0, Fade 0 About the plastic: DX Line is produced with our Deluxe plastic. The DX Line offers the widest selection of models and weights. These discs are affordably priced and provide an excellent grip in a variety of weather situations. DX discs wear in with usage which will slightly alter their flight paths over time.