The Addaptive ƒ(P) pearl is Brunswick's newest innovation in performance enhancing additive chemistry. ƒ(P) describes our latest ƒormula that combines our new (P) rojection additive with an aggressive reactive coverstock to skid easily down the lane, saving axis rotation for the backend and resulting in higher entry angles into the pocket and through the pins. Being able to utilize performance enhancing additives in a coverstock allows Brunswick to effectively fine tune the length, midlane and backend of the ball motion. The new Nexus Arrowhead core features a single density elliptical inner dynamically designed to stay on line and enhance projection down lane for retention of rev's and ball speed. This long and sleek core preserves revs and ball speed for the backend of the lane increasing pin action for higher scores. With its Rough Buff Finish, the Nexus ƒ(P) projects easily through the front, storing axis rotation and revolutions in the midlane while gripping the backend for a strong continuous motion that slices through the pins with ease on medium oil lane conditions. The Nexus ƒ(P) can be drilled using the standard drilling techniques developed for asymmetric bowling balls. At Brunswick, the unique core shape of each individual 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. At 12 and 13 pounds, Brunswick uses a generic core shape with a RGdifferential that is close enough to the 14 to 16 pound shape so the same drilling instructions can be used.