CFT ultimax pearl is our newest breakthrough in Chemical Friction Technology. The CFT ultimax pearl coverstock uses the highest concentration of the friction additive in order to maximize the chemical system. The key to CFT is creating more traction with chemical friction instead of mechanical friction. By using less mechanical friction to produce hook, the CFT ultimax pearl coverstock provides enhanced projection down the lane while saving axis rotation for more energy on the backend and through the pins. The new Dual Flip IBlock core incorporates a top and bottom flip block over a centered mass. The centered mass creates stability while the dual flip blocks keep the core revving to the backend all the way through the pins for improved pin action. With its Rough Buff Finish, the C (System) ultimax skids effortlessly through the front, saving axis rotation in the midlane to grab the backend for strong continuous response to friction that cuts easily through the pins on medium to mediumoily lane conditions. The C (System) ultimax 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.