This is posted for one of our customer in house-
I purchased a 15 lbs. Flash Flood from Buddies with a 2 inch pin and 2.75 oz of top weight. I placed the center line of my grip 1 inch from, and parallel to, the CG. The CG is 4 inches from my PAP. With a full finger tip layout the pin would be 1/2 inch below my ring finger and 1/2 inch from my grip center line. I'm a left-handed power stroker with a 220+ average (my track diameter is between 10-11 inches, my normal RPM averages 350 (medium/high revs) and my normal ball speed ranges between 19-20 MPH) so I used a Sarge Easter grip layout (ring finger is conventional and the second finger was drill finger-tip) on this ball to keep my hand more behind and underneath the ball to generate more forward roll. This placed my ring finger directly through the pin. I left the box finish the same. No balancing, leverage, or weight hole was needed. The ball weighted out (after drilling) as 1/2 oz. side and neutral (0 oz.) finger to thumb and just over 1/2 oz. of top weight.
I first tested this layout on a fresh oil house shot condition and was able to stand with my left foot on 10 and my target line was one board left of the second arrow (9) with the ball skidding out no further than two boards right of the fist arrow (7). The ball easily got through the heads and was very consistent and predictable through the mid-line. At around 45 feet the ball made a strong and consistent move toward the pocket, with sufficient roll and entry angle to carry the corner pins without over-reacting. My three-game test series was 276, 278, 268, for an 822 series. During the three-game set I only needed to make a one board adjustment with my feet and my target to keep the ball within the head oil.
I tested this layout again on lanes that had been used for bumper bowling so there was little or no defined back-end. While I had to tighten my target line a bit to compensate, the ball still had a good mid-lane reaction with acceptable back-end finish. My three-game test series on this condition was 236, 227, 255 for a 718 series.
Overall, I've found the Flash Flood with this layout to be a solid performer on fresh medium oil conditions that are medium/long in length; and a better than average performer on medium conditions with significant carry-down.