PDZ Power Reactive is a coverstock developed by Brunswick to improve the midlane and backend traction of the ball on today's slicker oils and lane surfaces. The PDZ Power Reactive coverstock was discovered through testing of new formulation additives and process changes in coverstock manufacturing. The Danger Zone Core is a Low RG symmetric core with a high differential. The Low RG engages in the midlane, assisting in ball motion, and the higher differential increases track flare potential. This combination gives the ball more opportunity to grip the backend of the lane while using standard layouts. With its 4,000 Siaair Micro Pad finish, the Danger Zone Code 1 will provide good length with a strong continuous backend reaction that matches up on medium to oily lane conditions for a wide range of bowling styles. The Danger Zone Code 1 can be drilled using the standard drilling techniques developed for symmetric bowling balls. The unique core shape of each Brunswick ball is used for weights from 14 to 16 pounds. This approach to lightweight ball engineering provides bowlers with consistent ball reaction characteristics across this weight range. The same drilling instructions can be used for 12and 13pound balls. This is because Brunswick uses a generic core shape with an RG differential that is close enough to the 1416 pound shape.