ok so this is not meant to be as a diss on head cause they're more than an established brand on the game, and im currently playing with a MG Prestige Pro wich i found awesome for the last 4 months and im planning on getting more. But i was reading trough to heads description on the new material technology used on the new YOUTEK frames and i can't help but laugh over and over again.. Heres the description: d30 d3o belongs to the "smart materials" category, which is a futuristic material with abnormal behavior characteristics. More specifically, d3o belongs to a subcategory of "dilatant foams", which dramatically change their behavior under dynamic loading or impact. Integrated in the lay-up and positioned in the shaft of the racquet, d3o offers new possibilities for tennis players. The d3o technology is able to sense the needs of the players during different strokes (it's able to adapt to you). On high-speed impacts (aggressive shots), the smart molecules lock together within nanoseconds and dramatically increase the stiffness of the whole racquet frame to provide maximum power. On slow-speed impacts (slice or drop shots), the d3o molecules absorb the impact to provide a softer touch for better feel. What does this mean to a tennis player? Passing shots are even harder and drop shots more precise, rewarding your spontaneity and supporting your courageous decisions. So my question is... how much further are racquet companies are going to take us? i don't know 10 or 15 years down the road?