A X-Blem bowling ball from SPI Bowling Products (Storm, Roto Grip, and 900 Global) will have an X stamped by the serial number. X-Blems are seconds due to a cosmetic blemish similar to an X-Comp, but the specifications fall out of the 2-4" & 2-4oz. range. The reaction of the bowling ball will be the same as the first-quality ball.
Since debuting in 2016, the Hustle Series has built a reputation for delivering unmatched performance at an unbeatable price. Whether it was the Hustle™ INK making history with the 34th sanctioned 900 series or countless appearances on PBA and PWBA broadcasts, this line has proven time and again that it punches well above its weight.
The magic lies in its consistency. While the reliable Hustle Core has remained unchanged since its introduction, the line’s strength has come from the evolving VTC™ (Versatile Traction Control) Coverstock—offered in Solid, Pearl, and Hybrid variations. This combination has allowed the Hustle series to remain a go-to option for bowlers of all skill levels, handling light to medium oil conditions with ease.
From newcomers to seasoned professionals, the Hustle continues to be a trusted choice for clean motion, dependable backend reaction, and lasting value.
Here's what Roto Grip has to say about the Hustle Earth:
Since their conception back in 2016, the Hustle Series of bowling balls has provided outstanding performance above and beyond the retail price. From the 34th sanctioned 900 Series by the Hustle™ INK, to countless TV appearances over the years on both the PBA & PWBA Tours. The various versions of Hustle’s have provided consistent reactions time and time again.
And while the inner Hustle Core has remained the same since day one, it's the different variations of the VTC™ (Versatile Traction Control) Coverstock - Solid, Pearl & Hybrid, that have kept this line viable on those Light to Medium Oil conditions for every level of bowler from the first timers, all the way up to the pros.
