I was able to drill up my Pitbull Bite this week with a 40x4x35 drilling. Yesterday I bowled on a 45 foot heavy oil flat pattern in a tournament and this ball let me play the pattern 20-12. I was impressed with the way it finished on the backend compared to my Kingpin drilled the same. My Kingpin was a lot smoother and rolled up front, where as the Pitbull Bite saved energy till the end of the pattern. Both balls were OOB surface. Going to try and polish the ball and try it out in league on Tuesday and will let you all know how that goes.
If you want a heavy oil ball that moves in the backend of the pattern, I honestly think this will be the ball for you. If you want something earlier and smooth, then the Kingpin is that ball.