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Ball Review


Columbia 300: Eruption Pro Hook 47 • Length 16 • Breakpoint Shape 15


////////////////////////////////////////////////////////// ////////// Manufacturer’s Intent:


”Our goal with the Eruption Pro was to create a ball reaction that we haven’t had in our line in quite a while,” says Columbia Brand Manager, Bugsy Kelly. “The Eruption Pro is cleaner than any of our performance balls, and still makes a strong and continuous move off the spot. The Eruption Pro complements the Mass Eruption [November 2012], Violent Eruption [July 2012] and Disruption [June 2013] in the Mid- Level Performance category.” Core Design: Designers at Columbia


300 opted to modify the popular Resurgence symmetric core for the Eruption Pro. The RG was raised to 2.50 (from 2.46) and the differential was low- ered to .036 (from .043). This creates additional length and a later transition downlane. We saw a maximum of 4 inch- es of track flare with strong 4-inch pin distance drillings. Coverstock: Designers also devel-


oped a new solid cover formula called CR (Clean Reaction) 300. The eye-popping bright orange color is sanded three times


with 500 grit, once with 1500, and then polished. The Ra level mea- sures 1.5, with an effective surface grit reading of 5450. The response time off dry is moderately quick,


and oil traction is very limited. Test Results: The Eruption Pro


fits nicely in the Columbia ball lineup as a light-medium to medium oil, benchmark-type rolling ball. The core and cover combination offers a controllable arcing reaction for most down-and-in styles. Boomers may also enjoy the easy push through the fronts and the controlled arc the


ball delivered on most THS test patterns. Compared to a like-drilled Mass Eruption, we saw one to two boards less total hook, 2 to 3 feet added length, and a slightly more assertive move when coming off the oil pattern. When to Use: The Eruption Pro is


destined for use on lighter oil volumes. The polished surface adds to its length, and the arcing response off dry keeps the down- lane move in check. We also saw good looks on broken-down Sport patterns with oil volumes at 23-ml. or less. Our preferred angles of attack were from third arrow and out, particularly for our testers with average rev rates.


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