A X-Comp bowling ball from SPI Bowling Products (Storm, Roto Grip, and 900 Global) will have an X stamped by the serial number. X-Comps generally have a cosmetic blemish. The Pin (Core Top) distance is in the 2-4" only range and Top Weight 2-4oz. range. The reaction of the bowling ball will be the same as the first-quality ball.
The Typhoon gains energy with every spin before delivering a powerful, precise motion downlane. Engineered for light to medium oil conditions, it glides effortlessly through the front and makes a strong yet controlled move off the backend. The Reactor Pearl coverstock ensures a smooth path through the heads, while Power Edge technology fine-tunes friction for a seamless, reliable transition. Designed for all bowlers—even those who prefer lighter weights—the Typhoon exceeds expectations for a Hot Line ball.
Here's what Storm has to say about the Typhoon:
Powerful. Precise. The Typhoon builds momentum with every rotation before unleashing its full force downlane. Built for light to medium oil conditions, the Typhoon delivers length up front and a strong, controlled motion off the backend. The Reactor Pearl coverstock clears the front part of the lane with ease, while Power Edge fine-tunes friction, creating a clean and consistent transition. Designed for everyone—even those who prefer lighter weights—the Typhoon delivers even more performance than expected from a Hot Line ball.