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Motiv Primal Scream

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

How it moves

Foul lineArrows · 15 ft45 ft · board 8.55.3° 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

Primal Scream

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
Whiplash Solid
Reactive solid
Core
Impulse V2
Symmetric
Factory finish
4000 Wet Sand
Color
Not listed
Released
2012-09-26
USBC
Approved 2012-08-01

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.670.040—
13 lb2.600.055—
14 lb2.560.054—
15 lb2.550.050—
16 lb2.540.049—

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
4000 Wet Sand. 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.