"I wanted to know if someone could tell me what difference in reaction would be between it and a Destruction with the RICO."
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The Ultra, with it's stronger cover and core will handle somewhat more oil than the Destruction, which is not intended to be an "oil ball".
Although the Ultra's hybrid (part solid/part pearl) cover IS stronger, it's still not a heavy oil ball. What it WILL do is rev up faster, due to the core, and allow you to manage some more oil than the pearl reactive cover of the Destruction. Overall, the Ultra will be earlier and smoother...
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Lane Carter, Strike Zone Pro Shops - Salt Lake City, Utah
Brunswick Amateur Staff
www.brunswickbowling.com