- Tenacity

First Impressions
The Brunswick Tenacity was introduced in January 2018 as the new flagship of the long-and-strong category, and it catches the eye with its color combination of black, silver and purple pearl. Inside, Brunswick relies on the asymmetric Tenacity core, which is built for maximum dynamics with an RG of 2.503 and a high differential of 0.052 (at 15 pounds). The special feature is the intermediate differential of 0.018, which provides noticeable asymmetry without excessive unpredictability. This core is wrapped in the UR (Ultra Responsive) Pearl coverstock. This material blend was developed specifically to keep friction in the heads extremely low and to react abruptly only on contact with dry boards at the end of the lane. The ball comes out of the box with a 500 Siaair finish polished with Crown Factory Compound, which underlines its aggressive backend character.
Comparison Compared to the Brunswick Kingpin, which is designed as a massive solid ball for heavy oil, the Tenacity offers a considerably longer skid phase and a much sharper change of direction at the breakpoint. While the Kingpin controls the midlane, the Tenacity is tuned to store energy for an explosive move into the pocket. Set next to the Storm Phaze II, the difference between symmetric control and asymmetric aggressiveness becomes clear: the Tenacity glides farther through the heads and creates a steeper entry angle. Compared to the Brunswick Magnitude 035 Pearl, the Tenacity offers noticeably more overall hook and a stronger response to friction thanks to its asymmetric core and the stronger cover. Compared to the DV8 Creed Revelation, the Tenacity shows a similar skid/flip character, but it comes across as somewhat more continuous in its follow-through into the pins.
On the Lanes The Brunswick Tenacity is the ideal choice for medium oil conditions when a long skid phase and a violent backend snap are called for. It is meant above all for situations where the heads are already broken down and dull balls react too early or lose energy. Its asymmetric core structure provides enough stability to keep contact with the lane even on wider lines across many boards. It's especially suited to you if you're looking for a high entry angle to optimize carry on difficult pin configurations. On typical house shots (THS), the Tenacity allows a very aggressive inside-out game, showing its full strength as soon as it reaches the dry zone at the end of the oil line. On very short patterns or extremely dry lanes, however, the backend reaction could be too much, which is why it performs best on fresh to moderately broken-down medium patterns.