Starting from the inside, the Shape-Lock HD Core can power through just about anything. HD is short for “high density”, which lowers the RG and raises the differential of the weight block. Fresh coverstock is important, but the type of coverstock chosen is equally as vital. R4S has come from several generations of Reactor™ coverstock material. With an increased porosity that is higher than its predecessors, you can feel confident that it will grab when it sees friction at the end of the pattern.
R4S Hybrid Coverstock
R4S has come from several generations of Reactor coverstock material. With an increased porosity that is higher than its ancestor, you can feel confident that it will grab when it sees friction at the end of the pattern. It has the highest reactivity of any Reactor series cover and bridges the gap between mid-range Thunder Line and high-end Premier Line balls.
Shape-Lock HD Core
This shape can power through just about anything. “HD” is short for high density, which lowers the RG and raises the differential of the weight block. A higher differential translates to more flare potential, so every time the ball makes a rotation it exposes a fresh portion of coverstock material to the oil.
