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Track 715A

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

How it moves

Foul lineArrows · 15 ft44 ft · board 76° 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.
Track

715A

Discontinued
Hook potential7 (est.)7 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
Reactive
Reactive solid
Core
Catback
Symmetric
Factory finish
4000 Grit Abralon®, Polished With Power House Factory Finish Polish
Color
Blue / Silver / Red
Released
Not listed
USBC
Approved 2009-05-01

Weights and specs

WeightRGDifferentialInt. diff
14 lb2.530.045—
15 lb2.520.052—
16 lb2.560.046—

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
4000 Grit Abralon®, Polished With Power House Factory Finish Polish. 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.