The Predator Z-2 Shaft is an improvement over the original Z Shaft. It has a heavier/stronger Taper and new ferrule and tip materials. The Z-2 now has a 11.75mm Everest tip made by Tiger products. This shaft has a and a shortened ferrule of 4/10ths of an inch. The Z-2 is available with all the joint sizes with the standard collar and will fit any cue.