Butterfly Dignics 80 vs Nittaku Fastarc G-1: Which Should You Buy?

UltraSpin comparison · 2026-06-07 · rubber

Butterfly Dignics 80Nittaku Fastarc G-1
Our rating9.0/108.8/10
best_sideFH and BH (both sides)both
controlmediummedium-high
speedvery high15.0 (Nittaku)
spinvery high12.5 (Nittaku)
sponge_hardnessapproximately 40 degrees47.5°
typeInverted (tensor, Spring Sponge X)tensor inverted
weight_uncut_gapproximately 7069

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Both are attacking rubbers built for either wing, but at different price levels. Dignics 80 brings very high spin and speed with a catapult feel, a slightly lower medium throw that drops the ball deep, and durability rated around twice as long as the Tenergy series. Fastarc G-1 pairs heavy spin and real speed with a high, safe throw that makes opening loops against backspin consistent and forgiving, plus Tenergy-like durability at a lower cost.

Choose Dignics 80 if you want the higher performance ceiling and a flatter, deeper trajectory, and you have the fast arm speed to drive it.

Choose Fastarc G-1 if you want heavy spin, real speed and a forgiving high arc on opening loops without paying flagship prices. Its firm 47.5 degree sponge rewards a committed, technically sound stroke and it is on the heavier side, so it suits intermediate-to-advanced attackers rather than beginners. Dignics edges ahead on outright spin and a deeper throw; Fastarc G-1 is the value pick with an easier, higher arc on the open-up.

FAQ

Which has the more forgiving throw on opening loops?

Fastarc G-1. Its high, safe throw makes opening loops against backspin consistent and forgiving. Dignics 80 uses a slightly lower medium throw that keeps the ball dropping deep.

Which is better value?

Fastarc G-1 delivers Tenergy-class performance and durability at a lower cost. Dignics 80 carries a premium price but offers a higher spin and speed ceiling.

Is Fastarc G-1 beginner-friendly?

Not especially. Its firm 47.5 degree sponge rewards a committed, technically sound stroke and it is best suited to intermediate-to-advanced attackers.