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Ball Review Radical: Yeti

Hook 53 • Length 15 • Breakpoint Shape 16

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

“The Yeti is the first of the new generation of extremely versatile symmetrical balls in the Reliable line from Radical Bowling Technologies,” says Mo Pinel. “By using the offset patent and the new Radical ‘finger scoop’ (patent

pending) at the top of the core, Radical has created the most drilling-versatile ball ever.”

Core Design: The Yeti boasts

an all-new symmetric core that may revolutionize future core designs. The RG is low at 2.48 and the differential strong at .054. This “finger scoop” shape can alter differentials between .044 and .077. We saw upwards of 7 inches of total track flare from our 300 rev-rate tester. Coverstock: The Yeti’s coverstock is a new pearlized mixture, colored in red and purple. We rate this cover as average in oil, yet quick and strong off friction areas. The factory finish is sanded at 500/1500 and Rough Buff polished, resulting in a 2.5 Ra reading and effective surface grit of 5135.

Test Results: The Yeti’s break- through core shape can alter the ball’s motion shape dramatically, dependent on pin location and if a weight hole is added. The Yeti can be either an aggressive skid/flip

pearl or an earlier rolling, smooth-arc- ing pearl; it’s all about proper layout choice. In short, it’s an extremely versatile all-purpose ball for medi- um to medium-heavy oil volumes. With box polish, our best looks were on medium oil, yet when sanded with 1000 grit, we saw an

average of six to eight boards more total hook and a 2-foot-earlier breakpoint on the heavier stuff.

When to Use: With our higher flaring “MOtion Hole” layouts, we could easily play well inside the oil line on our THS test patterns, and “swing it and bring it.” The “MOtion Hole” layout adds length and entry angle on almost any type of oil pattern. When we wanted something to transition earlier, we drilled the Yeti with Mo’s “Double Thumb” layout, which is earlier and stronger downlane, even when the ball is polished. The Yeti also responds well to duller surfac- es for speed-dominant types looking for an even earlier read and even more total hook.


Hammer: Chalk Hook 52 • Length 15 • Breakpoint Shape 15

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

“The versatile Chalk offers a multitude of motion shapes and expands

Hammer’s line in support of TNBA, the second

largest bowling association in the United States,” says Hammer’s Jeff Ussery. “The Chalk combines the Assault core with the GTR III coverstock for

performance at its best.” Core Design: The

Assault core has a low 2.48 RG.

The differential measures a whopping .056, which gave us nearly 6.5 inches of average track flare during testing. The symmetric design and core

numbers will provide fast revs with a strong, controllable breakpoint shape. Coverstock: Supplying the traction for the Chalk is the popular GTR III reactive cover, also used on the Taboo (January 2011). Colors are a blend of red, blue and purple. The factory surface is sanded with 500, 1000 and 2000 grits and then polished. The response time off friction is quick and strong. Oil traction is somewhat

limited. The Ra measures 1.5. The effective surface grit is 5400. Test Results: The Chalk

will be one of those all-purpose polished reactive balls we all need for medium oil. The low-RG core helped the Chalk rev easily and added to down-lane control. The .056 differential allows the player to choose the amount of flare. The Chalk has a type of benchmark roll around which one could build an arsenal. The ball ate up fresh and broken-down medium Sport and house oil patterns. The breakpoint was a strong arc shape, yet supplied very good pin carry left of the 4th arrow. Our lower pin positions worked well when needing a less angular, smoother shape leaving the pattern.

When to Use: On fresh medium oil volumes, the Chalk can be played slightly inside the oil line and banked toward the friction areas. We never saw a skid/flip shape, but I’m sure with the help of Ebonite’s Blueprint software, we could find one. Hammer offers the complete array of hook and motion shapes needed to build an effective arsenal of equipment.

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