Butterfly Sriver FX vs Nittaku Fastarc S-1: Which Should You Buy?
| Butterfly Sriver FX | Nittaku Fastarc S-1 | |
|---|---|---|
| Our rating | 7.8/10 | 7.9/10 |
| best_side | both | forehand or backhand |
| control | high | 70 |
| speed | medium | 97 |
| spin | medium-high | 96 |
| sponge_hardness | soft | 35 degrees |
| type | high-tension inverted (soft) | inverted |
| weight_uncut_g | 62 | around 41-43g |
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Sriver FX (7.8) is the trusted control classic. Nittaku Fastarc S-1 (7.9 rating) is the lightweight upgrade: genuine tensor speed without excessive stiffness, excellent blocking, grippy feedback, and extremely light (around 41g uncut). S-1’s spin lags behind competitive tensors and peers, trading pure spin for accessibility and pace.
Sriver FX for beginners and blockers. Fastarc S-1 for intermediate all-round attackers wanting speed and lightweight swing without peak spin.
FAQ
Why is S-1 so much lighter?
Design priority. S-1 targets accessibility and ease of swing; Sriver FX’s weight comes from its forgiving sponge.
Is S-1 easier to learn than Sriver FX?
Not easier, but different. Sriver FX is softer and safer; S-1 is more lively but requires developed technique.
Can S-1 spin like Sriver FX?
S-1 spins adequately but not as easily. Sriver FX’s soft topsheet is more forgiving for spin strokes.
Best blade pairing for S-1?
All-wood and moderate off-blades pair well. The lightweight nature suits any blade speed.
Which is more durable?
Both solid. Sriver FX is a classic; S-1 reports strong durability under training.