Shot 300 with a Defiant Soul.Drilled the pin out in the ring finger,MB about 2 inches to the right of my thumb and put the weight hole right into the MB marking.Great roll with a smooth reaction off the spot downlane.Shot 300 with a Shatter on a Kegel pattern.Pin above the finger about 5 1/2 from the pap with about a 3 inch pin buffer.Handels oil better that I thought with a distinct down lane motion .Very flippy.Roto Grip equipment .For the price you can not ask for a better product than the Shatter.