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

UltraSpin comparison · 2026-06-12 · rubber

Butterfly GlayzerNittaku Fastarc S-1
Our rating8.2/107.9/10
best_sideForehand or Backhand (all-round offensive)forehand or backhand
controlHigh70
speed81 (manufacturer)97
spin73 (manufacturer)96
sponge_hardness38 degrees (JPN)35 degrees
typeInverted / High Tension (Spring Sponge X)inverted
weight_uncut_garound 48g uncutaround 41-43g

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Glayzer captures Dignics 05 technology at half the price, making it ideal for intermediate players seeking premium Butterfly quality without the cost. Its forgiving 38-degree sponge and high arc aid consistency, though it sacrifices some explosive power. Fastarc S-1 takes a different approach: ultralight and speed-focused, it excels at direct drives and fast attacks with lighter, more controllable feedback.

Choose Glayzer if you want spin production and tactical versatility across loops and short game. Choose Fastarc S-1 if you favor pace over spin and prefer the lightness and linear feel of Japanese tensor rubbers. Glayzer edges in spin and forgiveness; Fastarc S-1 leads in speed and maneuverability.

FAQ

Which suits backhand loops better?

Glayzer, with its softer sponge and higher throw angle, is more forgiving on the backhand. Fastarc S-1 tends toward forehand use despite claims of all-court versatility.

How do prices compare?

Glayzer costs roughly 50-60 USD; Fastarc S-1 runs 40-50 USD. Glayzer offers better value if spin and durability matter to you.

Who is each best for?

Glayzer: intermediate attackers building spin technique. Fastarc S-1: speed-driven intermediate players or those transitioning to tensor from beginner rubbers.

How long do they last?

Glayzer holds grip longer; Fastarc S-1 tops out earlier. For training 4+ times weekly, expect 2-3 months from Fastarc, 3-4 from Glayzer.