Roto Grip Rock Star Amped Ball Review by Jeff Ussery

Layout: 60 degrees x 5 1/2" x 40 degrees

RG: 2.50"

Differential: .046"

M/b: n/a

Surface: 1500 grit w/ Power Edge Polish

Core shape: Symmetric

Manufacturer's Intent: The revolutionary new NanoStar Pearl reactive coverstock, factory-shined with Power Edge, steals the show consistently time and time again thanks to the medium load of nanoparticles blended throughout. Don't say we didn't warn you. This isn't some quiet acoustic set; it's a roaring wall of sound! The NanoStar Pearl Cover is designed to grip the lane like a guitar solo grips your soul, delivering an amped-up backend reaction that will leave the pins trembling. But the hits don't stop there. Beneath the shredding cover lies the heart and soul of it all, the Rocker + A.I. Core Technology. This isn't just a core; it's the lead singer and the rhythm section all rolled into one! The Rocker Core provides the raw, untamed power, generating a high-revving, aggressive motion that pushes through the pins like a power chord through a stack of amplifiers.

Rock Star Amped is Roto Grip's most promising symmetric core polished ball in quite some time. I drilled this ball with my regular pin up drilling for the most length/backend combination possible. Rock Star Amped definitely delivers late/sharp motion on nearly every lane pattern I've tested this ball on so far. It starts with a medium rg, medium differential core shape that will generally match up on a wide range of lane patterns. Wrapped in a Power Edge polished NanoStar Pearl reactive cover, Rock Stap Amped is extremely long through the heads on every lane condition. I've thrown this ball in 2-3 of the driest centers in town so far, and it just doesn't ever hook up real early.

The part that makes Rock Star Amped so impressive is the way it digs into the lane at the mid-lane distance. Many polished balls get really long and can sometimes flutter or wiggle in the lane mid-lane as they lose traction. That doesn't happen with Rock Star Amped. Once the Amped starts transitioning, it continues downlane unlike any other Roto Grip polished ball has in a while. The last time I recall a symmetric core, polished option looking this good for Roto Grip was quite a while ago. Personally, I have this ball far stronger in the backend than the Roto Grip Gremlin.

Amped will be perfect on medium lane conditions and isn't bad on dry stuff either. There are certainly better choices on fresh oil due to the Power Edge Polish on the cover. But I think a wide range of customers will find great use for this HP3 ball from Roto Grip.

Roto Grip's Rock Star Amped is in-stock in 12#-15# at Total Bowling Gear now!