One way to describe this ball is its a monster. I drilled mine 45 x 4 5/8 x 40. This ball needs oil to show you what it can do. I had to take mine to 4000 to make it a little more usable for what I bowl on. I can use this ball early in league (as stated before our house pattern is tighter than most) this ball for me is a ball I need to keep in front of me to see the best results. So far when I have used it I have been happy with the scores it has given me. If you need a big ball with a big motor this is the ball.