WMB was the earlier ball, and compared to the S&D more arcing, "harmless", but by no means a weak ball. The later S&D had a similar but modified core - like Cbjdc states, it was designed to offer a more pronounced breakpoint. Not sure if I'd call it flippy, but at least that's the direction it goes. Not sure about the cover - both were particle balls with Brunswick covers, so they offer an early read on the lane. If you are out for control, I'd give the WMBa shot. The S&D ios the more modern "version", more aggressive, but I am not sure if that makes it a better choice.
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DizzyFugu - Reporting from Germany
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