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Motiv Sigma Hybrid

Photo and specs courtesy of Motiv. Reproduced with credit to the maker.

How it moves

Foul lineArrows · 15 ft44 ft · board 8.55.1° entry
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.
Motiv

Sigma Hybrid

Discontinued
Hook potential66 of 10, maker rating

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
Atomix Hybrid
Reactive hybrid
Core
Sigma
Symmetric
Factory finish
1000 Wet Sand
Color
Not listed
Released
2012-04-13
USBC
Approved 2012-03-01

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.630.024—
13 lb2.560.034—
14 lb2.500.044—
15 lb2.470.047—
16 lb2.480.041—

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
1000 Wet Sand. 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.

Balls like this

Same coverstock and core type; the closest company for this ball in a bag.