Threw the new Grease Monkey Whack! last night for the first time: 225,228,279=732 and was very impressed with the ease it clears the front and the amount of recovery it generates on the backend. I used my benchmark drill 45 x 5-9/16 x 70 (pin down under bridge) I used this same drill on my orignal Grease Monkey also. The Whack! rounds out the "easy use" line and gives it a complete 3 ball arsenal with the original Grease Monkey, Grease Monkey POW!, and now the Grease Monkey Whack!