- Bullseye

First Impressions
The Roto Grip Bullseye, released in August 2016, comes in an eye-catching color combination of bright blue and green. This ball is designed specifically as a spare ball and differs clearly from regular reactive models in both its technical specifications and its intended purpose. At the heart of the ball sits the traditional three-piece Trusty Core. At the standard weight of fifteen pounds, this symmetrical core carries an extremely high RG of 2.690 and a vanishingly small differential of 0.006. This construction results in absolutely minimal flare potential. That means the ball builds up almost no dynamic rotation on its way down the lane and is physically not designed to produce any appreciable hook. Wrapped around this core is the so-called Trusty Pearl Urethane cover. Unlike many conventional spare balls, which are made almost exclusively from classic polyester, Roto Grip uses a hard urethane blend here. This material should give the ball considerably greater longevity as well as resistance to wear and scratches on the lane. Out of the box, the cover is finished at 3500 grit and polished to a high gloss. In combination with the core numbers, this extremely smooth makeup should ensure that the ball glides absolutely effortlessly through the heads and does not use its energy for a change of direction. The primary goal of these components is a dead-straight and highly dependable path that behaves completely independently of how much oil is actually on the boards.
Comparison Compared directly to conventional spare balls made of pure polyester, such as the widely used Storm Ice, the Roto Grip Bullseye offers very similar and equally straight ball motion, but stands apart through the different material makeup of its cover. While the Storm Ice with its classic polyester cover is built to minimize friction absolutely, the Bullseye's pearl urethane cover delivers an identical amount of length but should score primarily through the material's increased structural integrity over years of use. The goal of a ruler-straight ball path remains exactly the same for both models. If, on the other hand, you bring in a very weak reactive ball such as the Storm Tropical Breeze for comparison, the fundamental differences in ball reaction and intended purpose become immediately apparent. The Tropical Breeze has a reactive cover and is specifically built to read the prevailing friction at the end of the oil pattern in order to develop a moderate, controllable hook into the pocket. Because of its highly polished urethane cover and passive core, the Roto Grip Bullseye ignores this friction on the backend almost entirely. Where weak reactive balls respond to changing oil conditions and drier lanes, the Bullseye stoically holds its extremely straight line, which makes it less a typical strike ball than a purely functional specialty tool.
On the Lanes The Roto Grip Bullseye is first and foremost intended for precisely clearing pins left standing after the first shot. Since its technical construction deliberately prevents a strong hook from developing, this ball takes the oil pattern on the lane almost completely out of the equation. That is especially crucial when aiming at difficult corner pins, such as the ten pin for right-handers or the seven pin for left-handers. Whether the lane has just been freshly oiled or is already well into transition, the Bullseye always slides reliably and dead straight across the boards you aim at. The heavily polished surface should ensure that the ball never grabs early in the heads under any circumstances. Beyond its undisputed main job as a spare ball, the Bullseye can also be used as a first ball for the strike shot in very extreme situations. When the lanes are heavily played and extremely dry, so that even the weakest reactive balls build up too much friction and become uncontrollable, the Bullseye's passive path allows a direct, straight line into the pocket. To still get consistently good carry in such a special scenario, however, an extremely high degree of accuracy is required, since the ball generates no strong entry angle on its own. All in all, the ball presents itself as an exceptionally dependable tool for bowlers of all skill levels who want a durable and absolutely predictable ball in the bag for their spare shots.