Dave Williamson- The El Nino, Wrath, Gold, and I believe the 2002 all had the vertical dual density, which is dlose to the Flash Bulb, except the vertical had the densities split down the middle up and down with a block on the bottom and wrapped in an outer core. Looks like a Columbia messenger core. The lightning flash had horizontal dual density, where the densities stacked on top of each other. Now the Bol.t and Skybolt had the original Lightning core light bulb weight block, flipped upside down and a flip block on top. But, the Bolt Pro had a Red Sunstorm core in it, which was 2 pucks stacked on top of each other, on top of a ball type core.
Dirtbikebowler- I agree with you there, it reminds me of the Quantum Helix balls a little bit, resin and urethane. It did get through the heads on the urethane strip, but once the flare started to migrate, the ball hit resin, urethane resin, (hook,skid,hook,skid). But I haven't even looked at the storm site yet, i'll have to do that tonight.
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Is it bad when you have to list the many bowling balls you've had on MULTIPLE sheets of paper? 148 and counting..............