Evolved from snow tire technology Dynamic Friction rubber has the higher friction rate in movement against the ball. Dynamic Friction is a result of balancing chemical composition with physical structure for the specific purpose; different than making static friction. New plastic ball is more difficult to catch with the rubber for spin because harder plastic shell also has the more slippery surface. Especially when the plastic ball hits the rubber with high speed at extreme angle. VEGA Dynamic Friction series improved the grip on plastic ball while keeping the legacy of world's most popular rubber formula. We are ready for plastic balls. Win With Us.