Here's what Innova has to say about the Aviarx3:
Aggressive backhand and forehand throws are a breeze with the AviarX3. Our most overstable Aviar model to date, the AviarX3 is ideal for headwind upshots and drives. It has a similar grip and 3-series speed as the Aviar3 but with greater stability.
Speed: 3 Glide: 2 Turn: 0 Fade: 3