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
Proactive Ultra High Load
Reactive solid
Core
Monster
Symmetric
Factory finish
35 Micron Trizact
Color
Not listed
Released
2002-06-01
USBC
Approved 2002-06-01
Weights and specs
Weight
RG
Differential
Int. diff
15 lb
2.55
0.041
—
Surface
Coarse grit
Coarse and fine
Fine grit or polish
35 Micron Trizact. Coarse surfaces grip through oil and hook early; fine or polished surfaces skid longer and hook later. 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.
