Photo and specs courtesy of Motiv. Reproduced with credit to the maker.
How it moves
Arcing turn (symmetric core). Dotted is skid, then the turn, then the roll into the pocket. Estimated from the coverstock, finish, core, and differential for a right-handed bowler with medium revs on a house shot. Lane conditions, speed, and layout move all of this.
How much the ball wants to hook, 1 (straight, a spare ball) to 10 (the strongest oil-eaters). Normalized from the maker's own scale.
Coverstock
Hexion SE (Strength Enhanced)
Reactive pearl
Core
Sigma
Symmetric
Factory finish
4000 LSS
Color
Not listed
Released
2018-08-22
USBC
Approved 2018-07-17
Weights and specs
Weight
RG
Differential
Int. diff
12 lb
2.63
0.024
—
13 lb
2.56
0.034
—
14 lb
2.50
0.044
—
15 lb
2.47
0.047
—
16 lb
2.48
0.041
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
4000 LSS. 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.
Balls like this
Same coverstock and core type; the closest company for this ball in a bag.
