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
GBV12.7
Core
VII Core Design
Symmetric
Factory finish
Not listed
Color
Navy / Teal
Released
Not listed
USBC
Approved 2008-09-01
Weights and specs
Weight
RG
Differential
Int. diff
12 lb
2.62
0.046
—
13 lb
2.59
0.043
—
14 lb
2.44
0.058
—
15 lb
2.45
0.051
—
16 lb
2.45
0.046
—
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.
