Photo and specs courtesy of bowling.com. Reproduced with credit to the maker.
How it moves
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.
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
e-Trax Hybrid Reactive
Reactive hybrid
Core
E.T. = Equalizer Technology
Factory finish
1500-grit Polished
Color
Purple Solid/Emerald Pearl/Teal Pearl
Released
2021-07-01
USBC
Approved 2021-03-09
Weights and specs
Weight
RG
Differential
Int. diff
15 lb
2.52
0.054
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
1500-grit Polished. 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.
Reviews on YouTube
Trevor Roberts · 2021 · 900 Global Altered Reality vs Roto Grip UFO Alert review by Trevor Robertshihbowling · 2021 · Roto Grip UFO Alert Bowling Ball ReviewJR Pro Shop · 2021 · Roto Grip UFO Alert | Bowling Ball Review | HOOKS MORE THAN EXPECTED??
Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.
