The Inertiaisthe first true distance driver in the MVP line. This disc is described as a controllable distance driver with GYRO Push that gives throwers increased control for distance drives. … For less experienced players, the Inertia will provide a neutral flight with reliably straight distance.
Proton is a beautiful and durable blend in the MVP line. Like all MVP discs, Proton has two separate plastics:a transparent flight plate in vivid colors, and a black solid outer rim.
Inertia Flight Numbers:

• Speed: 9.0
• Glide: 5.0
• Turn: -2.0
• Fade: 2.0