The Vanish is a straight to understable disc depending on the thrower and wind conditions.  The Vanish’s stability profile places it near a threshold of being straight at low power or in tailwinds, and controllably understable at high power or in mild headwinds.  As a 21mm class GYRO™ driver, the Vanish is designed to hit a midpoint of stability between two MVP Disc Sports models, the Wave and Orbital.
 
Proton is a beautiful and durable blend in the MVP line. Like all MVP discs, Proton has two seperate plastics; a transparent flight plate in vivid colors, and a black solid outer rim.