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Roto Grip TNT Infused

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

How it moves

Foul lineArrows · 15 ft48 ft · board 8.56.2° 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.
Roto Grip

TNT Infused

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
eTrax Plus Hybrid
Reactive hybrid
Core
Torpex
Symmetric
Factory finish
Reacta Gloss
Color
Glow Orange/Copper/Plum
Released
2023-11-03
USBC
Approved 2023-10-03

Weights and specs

WeightRGDifferentialInt. diff
12 lb2.650.035—
13 lb2.590.045—
14 lb2.540.051—
15 lb2.470.052—
16 lb2.470.050—

Surface

oil · laneCoarse grit
oil · laneCoarse and fine
oil · laneFine grit or polish
Reacta Gloss. 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.