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- All Bowling Ball Arsenals
- Bowling Ball Arsenals
- Symmetrical Pearls
Symmetrical Pearls
Name | Ball | Coverstock | Drilling Layout | Core | Weight | RG | Diff | MB Diff | Notes | ||
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Dawning Era | ![]() |
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Ethos | HK22 - Savvy Hook 4.0 Pearl Pearl Reactive |
Dual Angle
45° × 4.25” × 45° |
Ethos Symmetric |
15 pounds | 2.481 | 0.053 | Coverstock: Factory: 500/1000/1500 Poished Pin Out: Perfect Scale: 223.7 Breakpoint Shape: Skid/Flip |
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Amy's Vice | ![]() |
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Fireball | HK22 - GB10.7 Pearl Pearl Reactive |
Dual Angle
37° × 5.5” × 70° |
Fireball Symmetric |
15 pounds | 2.519 | 0.039 | Coverstock: Factory 500/1000/1500 Polished Pin Out: 2-3/16" Perfect Scale: 162.4 Breakpoint Shape: Skid/Flip
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Barely Legal | ![]() |
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NU Blue Hammer | Not Urethane Not Urethane |
Dual Angle
45° × 3.13” × 27° |
NU Blue Hammer Symmetric |
15 pounds | 2.586 | 0.027 | Conversion: 3.125" = 3-1/8" Coverstock: Factory: 500/1000 Sanded Pin Out: 3-3/16" Perfect Scale: 146.1 Breakpoint Shape: Smooth Arc |