Before I write a post all I can say is this ball is the real deal. Wow. I drilled mine 50 x 4 5/8 x 40. This ball comes out of the box at 1500 grit polish. This ball falls into Roto Grip HP3 line which for me has been a great line with the Haywire and Hywire. Now to this ball. All I can say is if you are looking for a ball that is clean and makes a awesome move in the back end well this is the ball. This ball does not leave anything behind and really goes thru the pins. This ball will compliment the Haywire and Hywire perfectly. Roto Grip OWN IT.