- Axiom Pro

First Impressions
The Storm Axiom Pro is the fourth ball in the Axiom series, which has found a strong following among competitive bowlers. Visually it comes across as understated and subtle, which is also reflected in its ball motion. The ball uses the familiar Orbital Core, characterized by its consistent axis movement and counted among the symmetrical cores. In the 15-pound version the ball comes in at a 2.48 RG with a 0.050 differential, which provides early rotation and a controlled path. The R4S Hybrid coverstock with a 4000 Abralon factory surface is said to be built for medium to heavy oil volumes. The R4S cover comes out of several generations of Reactor cover material and has increased porosity compared to its predecessors.
Comparison
Compared to the Axiom Pearl, the Pro shows less straight-line motion through the heads and stands up sooner, which makes it react to friction earlier. The original Axiom version sits between the Storm Phaze II and the Storm Idol and can handle more oil than the Phaze II. The Pro is said to take a middle position between the two other Axiom versions thanks to its hybrid cover. Comparable to the Storm Incite, which also uses R4S Hybrid, the Axiom Pro could serve as an alternative when other Axiom balls become too sluggish. The R4S Hybrid material is meant to close the gap between the mid-range Thunder line and the high-end Premier line balls.
On the Lanes
The ball suits medium to medium-heavy oil volumes and should work continuously through the pins. The pin action is described as perfect, with a good balance that should make it easy to handle. If you throw at medium speed, it should prove to be a versatile option that works both on the fresh and on transitioning, broken-down lane conditions. The increased porosity of the R4S surface should give you confidence that the ball will grab when it hits friction. The 4000 factory surface makes it suitable for more direct lines, while power players can also benefit from deeper angles thanks to the hybrid characteristics. As an overseas ball it is approved for USBC league and tournament play, but may not be eligible for PBA competition.