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Storm Crux

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

How it moves

Foul lineArrows · 15 ft49 ft · board 78.5° entry
Hockey-stick turn (asymmetric 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.
Storm

Crux

Discontinued
Hook potential6 (est.)6 of 10, estimated

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
ERG Hybrid
Reactive hybrid
Core
Catalyst
Asymmetric
Factory finish
3000 Abralon
Color
Purple Pearl/White Pearl/Black
Released
2014-10-14
USBC
Approved 2014-08-01

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.590.0290.008
13 lb2.570.0320.010
14 lb2.540.0500.015
15 lb2.500.0520.017
16 lb2.500.0510.016

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
3000 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.

Balls like this

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