- Sigma Tour

First Impressions
The Sigma Tour from Motiv is an absolute prime example of control and clean readability on the lane. Driven by the proven Sigma core, this ball offers very balanced and harmonious core dynamics with a 2.47 RG and a 0.047 differential. Combined with the precisely tuned Atomix solid cover, the result is a surface that interacts with the oil in an extremely predictable and consistent way. The 4000 grit sanded finish deliberately ensures that the ball picks up friction early and controls the midlane safely, without ever coming across as unpredictable. Even the outward appearance conveys great stability and reliability, qualities that carry over seamlessly into the actual ball motion in the heads. The whole construction is designed to give you clear feedback about the condition of the lane at all times.
Comparison
Looking at the Sigma Tour head to head with the Storm IQ Tour, its much stronger focus on control and predictability becomes very clear. The Storm IQ Tour does offer a slightly more angular move off the backend, but on difficult oil patterns it can react too sensitively or overreact. This is exactly where the Sigma Tour scores, with its steady, smooth and continuous arc toward the pins. Where the IQ Tour tends to miss the breakpoint, the Sigma Tour provides the traction in the pocket needed to stay safely on line. It closes the gap between extremely strong balls and weaker models absolutely ideally. For bowlers who like the IQ Tour but are looking for a calmer, safer option, this is the logical choice.
On the Lanes
On the lane this ball proves to be the perfect companion for medium to heavy oil patterns, especially on typical house shots or demanding sport patterns. It lets you get through the boards reliably and develops a strong but wonderfully round hook that leads straight into the pocket. The smooth reaction to the friction on the backend produces outstanding carry, since the ball transfers a great deal of energy into the pins instead of wasting it prematurely on an overly hard change of direction. Once the transition sets in, the ball can still be used very effectively with small adjustments to your line before a ball change becomes necessary. It is a true benchmark for anyone who wants to build their game methodically, and should deliver consistently high scores.