This ball is Track’s introduction into the mass bias core technology market. It seems that every mass bias ball up until the EMB has had the same characteristics. They all hooked and stopped, some further down the lane, some at your toes; but they all hook and stop, because the bias makes them stand up too quickly. Track has been working on a core design that would allow the ball to hook to its maximum potential then continue along that path, while retaining energy! Track’s CATS results support this. From exhaustive research, Track has found that the friction levels at the 48’-52’ part of the lane is where balls burn up and thus, do not strike. The uniqueness of the EMB is the placement of the weight blocks around an elliptical core body. In addition to a top and bottom weight block, Track strategically placed a third weight block (flywheel block), which affects the ball’s performance at the critical 48’-52’ spot on the lane. With other balls, when the ball begins to lose energy and starts to roll out, the friction numbers begin to dip.  With the EMB however, the flywheel block maintains energy longer by kicking in when the ball begins to roll end over end, as it does when it rolls out. The flywheel kicks in similar to overdrive. Another important factor differentiating EMB from other mass bias balls is the fact that the mass bias (spin spot) only moves about ½-¾ of an inch after drilling! The reason the EMB is so different is the strength of the mass bias, which is about three times, and in some cases, four times stronger than most mass bias balls on the market today! It stays where you put it after you punch the holes in it, even after you add balance holes! The specifications are: Ball Construction: Multiple-Density Five-Piece Design; Backend Rating: 9 (On Track’s Scale of 1-10); Hook Rating: 20 (On Track’s Ball Reaction Chart); Flare Potential: High; Core Design: “HyperActive” Technology; Radius of Gyration: 2.536; Differential: 0.051; Cover Stock: “ProTraction Plus”; Color: Plum w/Silver logo fill; Finish: Polished; Pin Placement: 0-5 inches; Hardness: 76-78; Available Weights: 14-16 lbs. (“Multiple Density Five-Piece Design”), 12-13 lbs. (High Performance Core 2 Technology).