Let me start by saying OOOOOO MMMMYYYY!!!!!
This is definately another well thought up bowling ball by Roto Grip. I threw it last night in league and have to admit I was thrown back with watching this ball travel down lane.
I didn't really do any special drill with it once I saw the numbers for the MB and Diff. I thought it would be good to drill more stacked label with no hole.
I put the pin above my fingers a little right of center(about a 1/2 inch) as well as a 1/2 inch from center of grip with the cg. The MB ended up right of my thumb about 2 inches.
What this gave me was exactly what the ball will do. It read the front and mid part of the lane well, and with no hole , it allowed the core to take over and hit the pocket with so much power that even when you slightly hit the head pin the pins got sent for a ride.
I bowled at chops in Omaha NE last night and they can be a little over under. I shot 690 with it down there.
Can't wait to throw it again!