Proton is MVP’s premium clear plastic, shared across MVP, Axiom, and Streamline. Translucent, durable, and the MVP plastic to compare with Innova Champion. Thirty-six moulds are listed in it.
That’s the plastic for keeping a mould’s flight. It holds overstable drivers overstable and takes trees without changing.
Grip is the trade: slick when wet, stiff in the cold, slow to beat in. Neutron is the MVP blend for feel.