I used to own one of these balls. It was drilled with the pin under the ring finger and the cg kicked out right, with an extra hole. I got great length with the ball and it had an amazing angle. It got through the heads very well, which allowed it to save energy for the backend.
Old House: The shot there was typically medium length, with a dry backend. At this house, I got excellent results with the eraser. I bowled two 278 games, as this ball would get down the lane and turn the corner hard. It recovered if I missed right, and it held if I missed left.
After Moving: When I got up here to Michigan, I could not find an ideal house for this ball. At one house, it just skidded to about 45, then flipped extremely hard, very difficult to control, and basically left the solid 9 pin when I did get it in the pocket. At other houses, I could not get this ball to move at all. It gave me the same amount of hook as my Chaos (just later), which has now gone through the "TEC Death" that I've heard about. It was ok at some houses, but I never got the same reaction I did from that house in Virginia. I ended up selling my Eraser to somebody with a lower RPM rate, and it worked great for him.
Overall: Good ball for a shorter oil pattern, works good on fresher conditions, dies on carrydown. Semi-versatile, not for heavy oil. Gets through the heads better than any ball I've ever owned. I'd give it an 8.5/10