Siux Electra ST4 Pro 2025
The Electra ST4 Pro is Franco Stupaczuk’s racket: a hybrid teardrop shape with medium-high balance, designed for advanced players who want to dictate pace and add spin without giving up all-round versatility.
Pros & Cons
Pros
- Hybrid shape balances diamond power with round-shape control.
- 15K carbon face and textured surface deliver serious spin bite.
- Shockout anti-vibrators genuinely improve comfort and joint protection.
- Fast and stable at the net for a hybrid.
Cons
- Not as forgiving as a pure round control racket.
- Medium-hard touch isn’t ideal for very sensitive arms.
- Requires clean technique to fully reward you.
On-court performance
Back of the court
The mid-high balance shifts the sweet spot toward the head, helping attacking shots without sacrificing too much manoeuvrability in defence.
At the net
This is a genuine strength — fast for a hybrid, stable under pressure, with a medium-hard, connected touch.
Overheads (bandeja, víbora, smash)
The sandpaper-style surface offers serious bite on aggressive viboras and kick smashes, rewarding players who add spin.
Comfort & vibrations
The two integrated Shockout anti-vibrators at the base of the head make a real, noticeable difference to comfort and joint protection.
Who it’s for / who should skip it
Good fit if…
- You’re a competitive all-rounder who wants to dictate pace.
- You want a fast, stable hybrid with real attacking edge.
- You like adding spin to viboras and smashes.
Skip it if…
- You want maximum forgiveness above all else.
- You have significant arm sensitivity.
- You prefer a pure round control shape.
Specifications (official & expected)
| Shape | Hybrid teardrop |
|---|---|
| Faces | 15K carbon |
| Core | Hard EVA |
| Weight | 355–375 g |
| Balance | Medium-high |
| Level | Advanced / competitive |
| Segment | Premium (Stupaczuk signature) |
Note: small unit-to-unit variations in weight and balance are normal.
Alternatives
| Model | Why pick it | Trade-offs |
|---|---|---|
| Siux Diablo Pro 4 2025 | A more forgiving, comfort-oriented hybrid from the same brand. | Less outright attacking edge. |
| NOX AT10 Luxury Genius 12K (2025) | Comparable all-round teardrop control. | Different brand pedigree. |
| Bullpadel Vertex 04 Hybrid 2025 | More overhead power if you want to attack more. | Less forgiving on defence. |
Verdict
The Electra ST4 Pro delivers exactly what a Stupaczuk signature racket should: a fast, stable hybrid that lets you dictate pace and add spin, with genuine comfort thanks to the Shockout system.
For competitive all-rounders who want one racket that attacks confidently without losing all-court versatility, this is one of the more complete hybrids Siux has released.
In 30 seconds
- Franco Stupaczuk’s hybrid: power, spin and control together.
- Fast and stable at the net; genuinely comfortable.
- A strong pick for competitive all-round players.