Photo and specs courtesy of Track. 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
QR-9 Pearl
Reactive pearl
Core
I-Core 2.0 (Dual Density)
Symmetric
Factory finish
500, 1000 Abralon® Polished with Power House Clean N’ Sheen
Color
Purple Pearls
Released
Not listed
USBC
Approved 2015-12-17
Weights and specs
Weight
RG
Differential
Int. diff
12 lb
2.60
0.039
—
13 lb
2.53
0.055
—
14 lb
2.52
0.055
—
15 lb
2.48
0.057
—
16 lb
2.49
0.049
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
500, 1000 Abralon® Polished with Power House Clean N’ Sheen. 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
Bowling News 900 · 2016 · Track Paradox Pearl Ball ReviewILM Bowling Supply · 2016 · Track Paradox Pearl Bowling Ball Reaction Review by ILM Bowling SupplyBowlerX.com · 2016 · Track Paradox Pearl Bowling Ball Review - BowlerX.com
Picked by search for this ball; videos and thumbnails belong to their creators and play on YouTube.
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