Mizuno has announced an mp x ball to accompany the more responsive mp s model for 2015features refined urethane cover reduced to 05mm thickness for increased initial velocity 330 dimple pattern configured for more stable ball flight 4 piece construction adapted for stability at high ball speedsthe mp x has been unveiled to help mizuno expand its use amongst the next generation of tour players and elite amateurs the 4 piece construction features a dual core design that reduces spin from t