Bowler Ratings


Bowler ratings are from 1 to 10 in order of Stroker (ST), Tweener (TW), Cranker (CR)

General Info

Name:Virtual Gravity Nano Pearl
Reviewed:October 2011
Coverstock Specs
Name:NRG Pearl Reactive Nano
Type:Reactive Pearl
Box Finish:1500 Grit Polished
Color:Orange / Charcoal / Indigo
Core Specs
Int. Diff:0.020

For details on our standard test layouts, please click here.

The Storm Virtual Gravity Nano Pearl features the same core/cover combination as the solid. With this release, Storm went with a pearl version of their breakthrough NRG Nano coverstock. In addition to pearlizing the Nano coverstock, they also added Mica into the mix, creating even more traction in the oil.

The excellent length and phenomenal move downlane matched up best with our medium test pattern for all three testers. Both Tweener and Cranker were covering more area than Stroker, as usual. Stroker’s low rev rate allowed him to play outside the first arrow with a nice move to the pocket at the back end. Tweener and Cranker were required to start this one much deeper in the oil pattern because of the big move at the back of the lane. The recovery downlane was huge, as Cranker was able to start as deep as he has with any ball on this pattern. He was able to cross the arrows left of the twenty board and still get back to the pocket shot after shot.

This one needed just a little help on the heavy test pattern. The volume and length of oil of this pattern made for a somewhat inconsistent breakpoint for all three testers. This was easily solved by removing the polish on all three balls with a 4000 Abralon pad.

On our dry test pattern, Stroker had the best overall reaction. His lower rev rate is a must for successfully attacking this short pattern with a ball that creates so much movement downlane. Finding the pocket consistently wasn’t a problem for him. Tweener and Cranker, on the other hand, found the massive change of direction downlane a little more difficult to control. Layouts that provide more roll than skid/snap will be what higher rev rate players will need if they are trying to use this ball on drier conditions.

The Nano Pearl’s ability to recover downlane gave us more miss room on our sport pattern. The shiny coverstock stored energy and easily pushed through the front of the lane. We didn’t need to adjust the cover, but if the Virtual Gravity Nano Pearl is too angular on flatter patterns, do not hesitate to remove the polish to smooth out the reaction.

Performance Ratings

This new Storm high performance ball comes out of the oil with as strong a move as any ball on the market. The pearlized NRG Nano coverstock stores all its energy for the breakpoint.
The 1500 grit polished coverstock easily pushes this pearlized ball down the lane. Even as the testing session continued, the Virtual Gravity Nano Pearl showed no signs of wanting to start up early.
Back End17
Strong revs and easy length set the Virtual Gravity Nano Pearl up for a big back end motion. All the energy of the Nano Pearl is unleashed at the back end of the lane.
Total Hook52
The Virtual Gravity Nano Pearl has one the highest total hook ratings for a pearlized ball. The strong core wrapped with a strong coverstock that stores energy makes for a large hook potential.


The ability to get the Virtual Gravity Nano Pearl to recover from nearly anywhere on our medium test pattern is its greatest asset. Bowlers on any type of medium condition will see more recovery than they’re used to with the Nano Pearl.


Extreme ends of the oil spectrum will put the Nano Pearl in the bag. Surface adjustments can be made to make it handle heavier volumes, but too many dry boards will cause this ball to struggle to stay right of the headpin.

Overall Summary

The Virtual Gravity Nano Pearl is the latest addition to Storm’s Premier line of bowling balls. The Pearl is the perfect complement to the original Nano. The Nano Pearl is longer and more angular than its solid predecessor.

Storm Virtual Gravity Nano Pearl Comparisons

Click below to see a comparison table of each pair of bowling balls shown:

To compare the Storm Virtual Gravity Nano Pearl to any other bowling ball(s), please use our Bowling Ball Comparison tool.

The BTM Ball Testing Team

About The BTM Ball Testing Team

The BTM Ball Testing Team is led by Eric Martinez. Our team of three testers has thrown and reviewed hundreds of bowling balls for Bowling This Month. When not testing balls for BTM, Eric owns and operates University Pro Shop in San Antonio, TX and he is an avid competitive bowler. Click here to learn more about how we test and review bowling balls.