
An Introduction to Axis Rotation and Axis Tilt
Almost every day, I feel like I see or hear something that is completely incorrect about axis rotation or axis tilt. Sometimes, people just mix up the two terms and...
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The Crown Victory Pearl uses the same Tiered Hexagon symmetrical weight block that was previously used in the Crown Victory and the Endeavor. The coverstock is a new formulation called...

The Brunswick Combat Hybrid shares the asymmetrical Rampart weight block with the original Combat. The coverstock has been changed to Alpha Premier Hybrid, and the box finish has changed from...

The Radical Deep Impact uses a modified version of the Torpedo Asymmetric core shape. This ball has a slightly lower RG and differential, but a larger intermediate differential than the...

The Bionic is the newest introduction into the Master line for Storm. This ball uses the NRG Hybrid coverstock, which comes out of the box with a 4000 Abralon finish....

The Storm Concept is the second release in the new SPI Lab line. Like the Level before it, the Concept uses a lower-flaring design, but its new symmetrical Radius core...

The Evoke Mayhem is the third entry into the Evoke line for Motiv. This ball shares the Overload Asymmetrical weight block with the previous two Evokes, but uses a different...

The Outer Limits Black Hole is the latest entry into the Outer Limits line for Radical. This ball uses the same Outer Limits Asymmetric core shape as previous Outer Limits...

By Bill Sempsrott
Almost every day, I feel like I see or hear something that is completely incorrect about axis rotation or axis tilt. Sometimes, people just mix up the two terms and...
By Tyrel Rose
One of the most complicated issues to fix in bowling is the concept of “clearing the thumb." This refers to how consistently your thumb exits the ball as part of...

By Tyrel Rose
Should I be using a urethane ball? It's a question that many bowlers find themselves asking, given how popular urethane has become at the highest levels of the sport. At...

By Bill Sempsrott
There are dozens of possible adjustments that we as bowlers can make to change where and how our bowling balls are entering the pocket. The first adjustment we typically learn—usually...

By Ernesto Avila
Before we discuss how to improve your spare shooting, I’d like to go back to how I started my search for the best way for a bowler to make more...

By Juha Maja
What does it mean to have a consistent release? Many bowlers want a "better" release and point to having more revs and more consistency. Taking the revolutions out of the...








