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 11.2
Core
Centrex Symmetrical Mass Bias
Factory finish
500, 2000 Abralon®
Color
Navy / Purple / Green
Released
Not listed
USBC
Approved 2006-01-01
Weights and specs
Weight
RG
Differential
Int. diff
14 lb
2.49
0.053
0.027
15 lb
2.46
0.056
0.027
16 lb
2.47
0.050
0.027
Surface
Coarse grit
Coarse and fine
Fine grit or polish
500, 2000 Abralon®. Sanded then smoothed (1500 to 3000 grit): enough tooth for oil, enough gloss to get down the lane. Most box finishes. Surface changes over games, and a pro shop can take any ball either way with a pad.