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
React-a-Thane
Core
Modified Vibe
Factory finish
500/500 Abralon
Color
Burgundy
Released
2014-11-01
USBC
Approved 1992-10-01
Weights and specs
Weight
RG
Differential
Int. diff
15 lb
2.57
—
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
500/500 Abralon. Bites through heavy oil, so the ball reads the lane early and hooks sooner. Sanded balls (500 to 1000 grit) live here. Surface changes over games, and a pro shop can take any ball either way with a pad.