Ball specs – 15 lbs 2 oz, 2.48 top weight, 2.75 inch pin.

The Uproar, a pearl in the HP2 line, was drilled using the dual angle method. The layout is a 60 X 4.5 X 55. An x-hole was not needed. Using Storm’s layout terminology the layout would be 4.5 by 4.75 with a 3 7/8 inch pin buffer. The cover was left OOB which is 1500 polished.

The Uproar, a weaker pearl with a 51 grit rating, was thrown on a fresh 41 foot, 24 micro liter house shot. The Uproar was super clean through the fronts, did not read the mids consistently and did not go through the pins very well. I added a flare increasing X-hole at the intersection of the VAL and a line drawn from the grip center through the CG to the VAL. This did improve the overall motion of the Uproar but there are better ball choices in the Roto Grip lineup for this lane condition. The Uproar will excel on conditions that provide some friction as demonstrated by Belmonte’s and Malott’s recent success using it.


John Brodersen
RG amateur staff