I wasn't going to review this ball, since I didn't want my first review on this site to be about the strangest ball I have ever owned, but then I saw Kevin62571's review and decided to do this review.
My results are the same as his. I am on my second drilling of the ball, and have tried the full range of surface preps on both drillings. At present, I have the pin just outside my ring finger, about 4 inches from PAP, and the CG swung out so that a weight hole on my VAL was required, about 3 inches or so below PAP.
This ball is just determined to go long and flip, regardless of drilling or surface prep. It will blow past the nine pin or bust. I also leave more 4-9s than I have ever seen with anything else. I bought the ball because it's specs fit the profile of the type of ball that I usually like--low RG, high diff, light load particle pearl. For the sake of editorial honesty, I must say that I don't enjoy much success with flippy balls, so I stay away from them. I did not expect this ball to be so flippy, and I can't tame it down much. The only reason I have messed around with it as much as I have is that--as I said--it's specs are the kind of specs that usually suit me; and just plain curiosity about such an odd piece.
At present, I have settled on an 800 grit dull surface achieved with gray Scotch-Brite. It may be a bit duller, since I really leaned on the Scotch-Brite. Even with this and a fairly high flare, early roll drilling, this ball will go long even on a fairly dry condition and flip. Amazing. I had just about decided that I couldn't use it, when I finally found its niche. It's a small niche. When the lanes are pretty well broken down, but there is significant carrydown--that is the niche. I actually see this sometimes, since my Saturday mixed league gets freshly--but lightly--oiled heads and mids, but no back end work; so the back ends have carrydown from the Friday leagues and from kids bowling all day. On this condition, balls aggressive enough to move in the carrydown break down the heads quickly and then burn up too early. If, however, you use something mild to get through the heads, it'll never grab on the back. This is where the Depth Charge comes in. It will go long even on the dry, but the carrydown tames its highly aggressive back end reaction enough to create some angle, but not too much as is the case when I use this ball on a dry back end condition.
This is a tiny niche, but an occasionally useful one.
I would say that this is not a ball for a bowler who plans to carry only one or two or three balls. If you have a sizable lineup and can afford to carry something that is highly specialized, this ball may be worth a look.