If you face true dry conditions, consider an urethane ball. There is the Brunswick Groove out there, and it will give you an mild, arcing hook. It does not really roll, though, since it lacks a dynamic core. Personally, I own a Red Pearl Urethane Hammer (similar design) and love it when anything else, even mild reactives, burns up.
I used the Plum Pearl Power Groove, but it never worked well for me. I do not consider it to be a dry lanes ball - it is a bit stronger than the reactive PGs and grips the lanes a little earlier OOB. It makes a great ball for late games, though, when all the all has been played down and carrydown makes the back end spotty. The coverstock is great, I wish Brunswick had used it with some lower RG core - the PG system never worked for me... The Black Sparkle, even polished, is even a touch stronger than the Plum Pearl. A great ball for carrydown, a sleeper, but NOT for dry lanes.
I'd say the ry/R is the best option from Brunswick at the moment.
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DizzyFugu --- Reporting from Germany
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