String comparison
Confidential vs Poly Tour Spin
Solinco Confidential against Yonex Poly Tour Spin: ratings, specs and which one fits your junior.
The short answer
Both are polyester strings. Confidential leads on power, control, durability and tension hold. Poly Tour Spin leads on comfort. For a junior with arm concerns, Poly Tour Spin is the safer choice. Confidential costs less per set.
Ratings
Power
Spin
Control
Comfort
Durability
Tension hold
Ratings are on a 1–10 scale. The higher score is in bold when they differ.
Pick Confidential if…
- You want more power (7 vs 5 out of 10)
- You want more control (9 vs 8 out of 10)
- You want more durability (8 vs 7 out of 10)
- You want more tension hold (9 vs 7 out of 10)
- You want to spend less (from $11 vs $14 a set)
- Best for: advanced players wanting Solinco spin with better tension maintenance
- Best for: those between Tour Bite (too stiff) and Hyper-G (too soft)
- Best for: players who value consistent playability over time
Pick Poly Tour Spin if…
- You want more comfort (7 vs 5 out of 10)
- Arm comfort comes first (arm friendliness 3/5 vs 2/5)
- Best for: spin seekers wanting comfort
- Best for: players needing help generating RPMs
- Best for: defensive players valuing control + spin
Specs side by side
| Spec | Confidential | Poly Tour Spin |
|---|---|---|
| Type | Polyester | Polyester |
| Construction | Pentagonal-shaped co-polyester monofilament | Pentagonal co-polyester monofilament |
| Gauges | 16, 16L, 17, 18 | 16L, 17 |
| Stiffness | Medium high | Medium high |
| Set price | $11–13 | $14–18 |
| Reel price | $150–170 | $150–180 |
| Arm friendliness | 2/5 · Low | 3/5 · Moderate |
| Cost to maintain | 4/5 | 4/5 |
| Recommended from | Age 14 | Age 14 |
| Levels | Advanced, Elite | Intermediate, Advanced, Elite |
| Play styles | Baseliner, Big hitter | Baseliner, Defensive |
| Junior tension | 46-50 lbs for juniors. First hour feels stiff - string settles nicely after break-in. | 48-52 lbs for juniors. Drop 3 lbs for more depth. |
Confidential in short
Solinco Confidential officially launched in 2020 after being available privately for around three years to select touring pros. The pentagonal shape provides excellent spin - comparable to Tour Bite or ALU Power Rough. What sets Confidential apart is its exceptional tension maintenance, even at lower tensions. Stiffness sits between Tour Bite (stiffer) and Hyper-G (softer). The first hour can feel stiff and board-like, but after breaking in, the string settles into a very playable feel with outstanding consistency.
Poly Tour Spin in short
Yonex Poly Tour Spin features a pentagonal shape for extra bite on every stroke. The most comfortable string in the Yonex Polytour range - soft on the arm while still providing spin and control. "If you're looking for control first and spin second, the Polytour Spin would be ideal." Shots leave the racquet with direct response and heavy spin, though may land shorter - drop tension 3 lbs for more loop and depth. Tension maintenance is excellent (12-16 hours) but some report dramatic drop-off when it dies. Good for defensive players setting up points with spin.
Confidential vs Poly Tour Spin: quick answers
Which has more spin, Confidential or Poly Tour Spin?
They tie on our spin rating (9/10 each).
Which is more arm-friendly for a junior?
Yonex Poly Tour Spin scores 3/5 for arm friendliness, against 2/5 for Confidential. It is recommended from age 14.
Which lasts longer?
Solinco Confidential rates 8/10 for durability against 7/10.
Which is cheaper?
Confidential costs about $11–13 a set and Poly Tour Spin about $14–18, at typical retail.
The short answer and the "pick if" lists are generated from our ratings and junior data only. Data verified 2025-01 (Confidential) and 2025-01 (Poly Tour Spin).