Find Your Ball

Target Performance Profile

Find the closest performance match — and build a complete 3-ball arsenal around it.

Enter any ball's specs to score its core + coverstock similarity against the Storm Equinox. Or hit the Arsenal Builder to assemble a benchmark / heavy oil / breakpoint trio drawn straight from the live Mojo Pro Shop catalog — every recommendation linked to its product page.

Reference Ball · 15 lb Asymmetric · Pearl Reactive

Equinox

Storm · Asymmetric Core · Pearl Reactive

2.48

Low — early revs

Total Diff

.054

High flare

Int. Diff

.018

Sharp transition

Medium-Heavy oil Length + angular backend Flare 5–6"+

Spec Comparator

Enter any ball's specs to see how it stacks up. The engine weights core dimensions (RG 30% · Total Diff 30% · Int. Diff 25%) plus cover-friction similarity (15%) to produce an overall Motion Match score.

Your Ball

Brand (optional)

Ball Name (optional)

Typical 2.45–2.65

Total Diff

Typical .020–.060

Int. Diff

0 = symmetric core

Cover Type

Core Type

Quick fills:

Motion Match

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match

Awaiting input

Enter your ball's specs and hit Compare Motion.

Core Similarity

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Cover Similarity

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ΔRG

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ΔDiff

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ΔInt. Diff

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Estimated Motion Profile

Flare Potential —

Reference Your Ball

Hook Shape — Angular ↔ Smooth —

AngularSkid/FlipArcSmooth

Length Down Lane —

Reference Your Ball

Top 5 Arsenal Matches

Current-market balls scored against the reference. The Match column is the full Motion Match (core + cover). The Status pill shows whether every core dimension falls inside the tolerance band.

Tolerance Band

±5.0%

Filter By

0 in band · 0 total

#	Ball	RG	Diff	Int. Diff	Cover / Core	Match

≥95% match — clone-level shape

85–94% — close shape, different feel

<85% — out of band

Build Your 3-Ball Arsenal

A complete bag needs three distinct shapes: a benchmark for medium-heavy fresh oil, a heavy-oil piece with a stronger solid cover, and a breakpoint ball for transition. Configure your style and the engine picks the best match for each slot.

Rev Rate

Ball Speed

House Pattern

Benchmark

Your "read the lane" ball. Closest-shape match to the reference. Use this on fresh medium-heavy oil and let it tell you where to play.

Heavy Oil / Step Up

A solid cover with stronger core numbers — same DNA but earlier and more aggressive. For deep fresh patterns or when the benchmark over-skids.

Breakpoint / Step Down

Higher RG or weaker cover for transition and burn. Saves energy, finishes the same direction, keeps you in the same line as oil moves.

How the Scoring Works

Core numbers describe shape. Coverstock describes friction. Both matter — Core Match weights them so an Equinox-style match beats an out-of-category clone with the wrong cover.

RG · 30%

Radius of Gyration

Where the ball starts revving. Low RG (≤2.50) reads early in the midlane. High RG (≥2.55) skids longer and stores energy for the back.

DIFF · 30%

Total Differential

Flare potential. Higher diff (.050+) = more track flare, more friction, more overall hook. Drives how much oil the ball handles.

INT · 25%

Intermediate Diff

Only on asymmetric cores. Higher int. diff (.018+) produces a sharper, more defined breakpoint. Zero = symmetric, smoother arc.

COVER · 15%

Cover Friction

Solid grips earliest, then Hybrid, then Pearl. Urethane is its own animal. Same core in a different cover can shift the breakpoint 5–8 feet.

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