How much the ball wants to hook, 1 (straight, a spare ball) to 10 (the strongest oil-eaters). The maker publishes no number for this ball, so this is estimated from the coverstock, core, finish, and differential.
Coverstock
GB 11.7
Core
Light Bulb
Symmetric
Factory finish
Not listed
Color
Red / Blue / Silver
Released
Not listed
USBC
Approved 2010-06-01
Weights and specs
Weight
RG
Differential
Int. diff
10 lb
2.72
0.031
—
11 lb
2.62
0.032
—
12 lb
2.62
0.046
—
13 lb
2.59
0.043
—
14 lb
2.52
0.042
—
15 lb
2.52
0.040
—
16 lb
2.53
0.038
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
Coarse surfaces grip through oil and hook early; fine or polished surfaces skid longer and hook later. Surface changes over games, and a pro shop can take any ball either way with a pad.
Reviews on YouTube
Ebonite Bowling · 2010 · Ebonite Ball Introduction: The Hard Ball & Curve BallBuddiesProShopcom · 2012 · Ebonite Hard Ball and Curve Ball bowling balls by Tim Gillick, BuddiesProShop.comkkbowling · 2010 · Ebonite Curve Ball with K&K's Brian Trubiro HD
Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.
