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

UltraSpin comparison · 2026-06-11 · rubber

Butterfly GlayzerNittaku Fastarc G-1
Our rating8.2/108.8/10
best_sideForehand or Backhand (all-round offensive)both
controlHighmedium-high
speed81 (manufacturer)15.0 (Nittaku)
spin73 (manufacturer)12.5 (Nittaku)
sponge_hardness38 degrees (JPN)47.5°
typeInverted / High Tension (Spring Sponge X)tensor inverted
weight_uncut_garound 48g uncut69

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Glayzer scores higher on accessibility and control, giving intermediate players Butterfly quality at a fraction of the premium price. The softer 38-degree sponge and high arc make it forgiving for net clearance, while the Dignics topsheet keeps spin reliable without demanding aggression.

Fastarc G-1 (8.8 rating) plays faster and heavier, rewarding committed offensive strokes with the kind of speed and spin combination that sustained club players expect. Its 47.5-degree sponge and high arc on opening loops make it a proven choice for attackers across either wing, with durability that holds up longer during play.

Pick Glayzer if you value consistency and broad gear range; pick Fastarc if you want heavy spin paired with genuine speed and have the technical foundation to extract it.

FAQ

Which is faster?

Fastarc G-1 delivers more raw speed. Glayzer prioritizes control and consistency.

Which is easier to learn?

Glayzer’s softer sponge and high arc are more forgiving. Fastarc demands more committed technique.

Which lasts longer?

Fastarc has Tenergy-class durability and holds performance over months. Glayzer’s above-average durability is still better than most in its price range.

Which is better for opening loops?

Both have high arcs, but Fastarc’s is specifically designed to be safe on opening loops against backspin.