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
Vector SF
Core
Robo
Factory finish
3000 Compound
Color
Purple / Silver
Released
Not listed
USBC
Approved 2006-09-01
Weights and specs
Weight specs have not been entered yet.
Surface
Coarse grit
Coarse and fine
Fine grit or polish
3000 Compound. Skims the oil and saves its energy for the dry part of the lane: longer skid, later and sharper hook. Polished and pearl balls. Surface changes over games, and a pro shop can take any ball either way with a pad.
