The Grease Monkey Whack uses the patented scoop technology design in this symmetrical core. Our goal with the Grease Monkey Whack was to create a very angular piece in the Grease Monkey Line. The Whack will clear the fronts cleaner than previous Grease Monkey balls and yield a very aggressive change in direction at the breakpoint on medium to light oil. This combination creates a cleaner and more angular ball motion that is ideal on house patterns. The Grease Monkey Whack provides outstanding performance at a very modest price…that is what the Grease Monkey Whack is all about.