Solinco Confidential Tennis String Review

Solinco Confidential is a shaped co-polyester tennis string designed for experienced players who prioritize control, spin and a predictable response. It sits between the more muted feel of Hyper-G and the firmer, crisper response of Tour Bite within Solinco’s performance-string range.

The string’s low-powered response and four-sided profile reward long, fast swings. Its combination of ball bite, directional accuracy and resistance to string movement makes it particularly effective for aggressive players who generate their own pace.

Confidential is also more comfortable and playable than its firm construction might initially suggest. It remains a demanding polyester, but independent evaluations consistently describe it as more forgiving than many traditional control-oriented monofilaments.

Solinco Confidential Rating

Control is Confidential’s defining quality and it’s spin potential is also excellent. Power remains limited unless the player supplies sufficient racket-head speed.

Solinco Confidential Specifications

Solinco uses a proprietary co-polyester composition combined with a shaped monofilament construction. The company positions this formula as providing improved playability, feel, comfort and tension maintenance compared with more traditional polyester strings.

Confidential’s four-sided profile creates angular edges that can interact with the ball during topspin, slice and kick serves. Its surface also allows the strings to move and return toward their original position, meaning spin comes from both direct ball bite and snapback.

The composition’s precise chemical details have not been published. Claims about special additives or named technologies should therefore be avoided unless Solinco releases more specific information.

The edges can feel relatively sharp while the string is being installed. This is a normal characteristic of the shaped profile and does not indicate that the string is damaged.

Solinco Confidential Performance

Power

Solinco describes Confidential as using a high-powered polyester filament, but that claim needs context. Independent playtests consistently characterize the finished string as low powered when compared with the broader tennis-string market.

Confidential provides little effortless depth. Instead, it allows players with long, fast swings to accelerate through the ball without producing an excessively high or unpredictable launch.

This controlled response benefits powerful players who do not need assistance generating pace. It can also complement powerful rackets by reducing unwanted depth and helping aggressive swings remain inside the court.

Players with short or developing strokes may find it demanding. Natural gut, multifilament or synthetic gut will normally provide easier access to depth and ball speed.

Power rating: 4.5/10

Spin

Spin is one of Confidential’s strongest qualities. Its four-sided profile provides pronounced edges that can grip the ball during upward and angled swings.

The shaped construction works alongside string movement and snapback. When the player generates sufficient racket-head speed, this combination can produce heavy topspin, low slices and effective kick serves.

Confidential’s low-powered response also helps spin-focused players swing aggressively. They can accelerate upward through contact without the stringbed contributing excessive launch.

The thinner 1.15mm and 1.20mm gauges provide the easiest access to string movement and ball bite. The thicker options offer greater stability and physical durability.

Spin rating: 9/10

Control

Control is Confidential’s defining performance characteristic. Its firm construction, low power and stable response provide the confidence needed for complete swings.

The string is particularly effective when redirecting pace, attacking shorter balls or targeting smaller areas of the court. Its predictable launch allows experienced players to hit through the ball without constantly reducing swing speed.

Independent testing has rated Confidential’s directional control exceptionally highly. Its combination of precision and spin also allows players to create safer net clearance while still bringing the ball down inside the baseline.

The response can become slightly more pocketing after the initial tension settles. However, it should continue to feel controlled rather than becoming excessively lively when installed in a suitable racket.

Control rating: 9.5/10

Comfort and Feel

Confidential is firm and independent playtesters generally place it around the middle or slightly above average within the performance-polyester category.

The string may initially feel stiff, metallic or board-like. After an initial settling period, it can develop greater pocketing and a more responsive connection with the ball.

Its feel is best described as firm, controlled and slightly muted rather than soft or plush. Experienced polyester users may appreciate the clear feedback, while players accustomed to multifilament or natural gut will find it significantly less forgiving.

Confidential should not be considered an arm-friendly string simply because it is more comfortable than some firm polys. Players with tennis elbow, wrist discomfort or other arm sensitivity should consider a softer material or hybrid setup.

Comfort rating: 6.5/10

Durability and Tension Maintenance

Confidential offers excellent physical durability. Its co-polyester monofilament construction resists notching and breakage effectively, particularly in the thicker 1.25mm and 1.30mm gauges.

The string also performs well in resistance to movement. The mains should continue returning toward their original position while the surface and elasticity remain functional.

Physical durability is different from playability duration. Confidential may remain intact after its elasticity, tension and snapback have declined. A string that has not broken can still become firmer, less responsive or more difficult to control.

Confidential’s playability duration is above average for a shaped polyester in several independent evaluations. It normally experiences an initial tension drop before settling into a more consistent response.

Experiences with tension maintenance can still vary. Racket stiffness, string pattern, gauge, installation quality, playing frequency and swing style all affect how quickly performance changes.

Players should replace Confidential when spin, comfort or control noticeably declines rather than waiting indefinitely for it to break. The guide explaining how often to change tennis strings covers the main warning signs.

Choosing the Right Solinco Confidential Gauge

Confidential is available in four gauges. The best choice depends on the desired balance between spin, responsiveness, control and resistance to breakage.

The 1.25mm gauge is the most balanced starting point for most intermediate and advanced players. It preserves Confidential’s spin and controlled response while offering better durability than the two thinner options.

The 1.20mm version suits players who want easier string movement, greater response and additional spin. It may notch or break sooner for aggressive string breakers.

The 1.15mm gauge maximizes feel and access to spin. It makes the most sense in dense string patterns or for players who do not regularly break thinner polyester.

The 1.30mm version is the most practical option for frequent string breakers, powerful hitters and open string patterns. It should feel more stable but may provide slightly less responsiveness and string movement.

Players who are uncertain about the correct material or gauge can use the Tennis String Finder for additional guidance.

Full Bed or Hybrid Setup?

Full Bed of Solinco Confidential

A complete bed maximizes Confidential’s control, spin and predictable response. This is the most logical arrangement for experienced polyester users with long, fast swings.

The setup can work particularly well in powerful rackets because the string’s low-powered response helps manage depth. It may also suit dense string patterns when a thinner gauge is selected to improve spin and responsiveness.

A complete bed can feel demanding in a stiff racket or at an unnecessarily high tension. Players who experience discomfort should not assume that continuing to lower tension will solve every problem.

Confidential Mains With Softer Crosses

Placing Confidential in the mains preserves more of its spin, control and physical durability. A multifilament or synthetic gut cross can add power, comfort and ball pocketing.

A softer cross such as Solinco Vanquish can make the setup more forgiving than a complete bed of Confidential. The shaped polyester mains will still determine most of the hybrid’s response.

The softer crosses may fray or break before the Confidential mains. The shaped edges can also increase wear on a softer cross, so both materials should be inspected regularly.

Softer Mains With Confidential Crosses

Installing multifilament or natural gut in the mains allows the softer material’s power, comfort and feel to dominate. Confidential crosses can reduce the launch and add a degree of polyester control.

This arrangement is more suitable for players prioritizing comfort over maximum shaped-polyester spin. It will not reproduce the same spin-focused response as using Confidential in the mains.

Confidential’s angular profile can notch softer mains more quickly than a smooth, round polyester cross. Players building an expensive natural gut hybrid should discuss this tradeoff with a qualified stringer.

Tension Guidance

Confidential should always be installed within the racket manufacturer’s recommended tension range. Because it is a firm and low-powered polyester, it generally does not require the same tension a player might use with natural gut or multifilament.

The lower or middle portion of the racket’s recommended range will normally provide a more practical starting point for a complete bed. This should preserve more pocketing and comfort without removing Confidential’s controlled character.

An unnecessarily high tension can make the initial response excessively firm. If the stringbed still feels too demanding at an appropriate tension, a softer string or hybrid may be more suitable.

Players experiencing too much launch can make a modest upward adjustment during the next restring. Changes should be gradual because the racket, gauge and string pattern all influence the final response.

The Tennis String Tension Calculator can provide a useful starting point before discussing the setup with a stringer.

Who Should Use Solinco Confidential?

Solinco Confidential makes the most sense for:

• Intermediate and advanced players
• Aggressive players with long, fast swings
• Players who generate their own power
• Baseliners using heavy topspin
• Flatter hitters seeking additional ball bite
• Players prioritizing directional control
• Experienced polyester users
• Frequent string breakers
• Players using powerful rackets
• Players wanting a middle ground between Hyper-G and Tour Bite
• Players who value consistent playability across multiple sessions

Confidential is not limited to heavy topspin baseliners. Its exceptional control and responsive feel can also suit aggressive all-court players who attack shorter balls, redirect pace and approach the net.

Who Should Avoid It?

Confidential may not be suitable for:

• Beginners with developing strokes
• Players needing effortless depth
• Players prioritizing maximum comfort
• Players with existing arm sensitivity
• Players who prefer a plush or highly elastic response
• Players with short or slow swings
• Players who leave polyester installed for several months
• Players who dislike firm, muted stringbeds
• Players who expect polyester to remain playable until it breaks

A technically developed intermediate player may benefit from Confidential, but playing level alone should not determine the decision. Swing speed, comfort requirements and restringing habits are equally important.

Pros and Cons

Solinco Confidential Compared With Other Strings

Solinco Confidential vs Hyper-G

Solinco Hyper-G is another shaped co-polyester built around spin and control. Both strings suit aggressive players who generate their own pace.

Hyper-G generally provides a slightly softer and more muted response. Confidential feels firmer, more direct and more focused on directional precision.

Confidential also sits closer to Tour Bite in firmness while retaining more forgiveness than Solinco’s most demanding control strings.

Choose Hyper-G for a slightly softer spin-oriented response. Choose Confidential for greater precision, firmer feedback and particularly strong playability duration.

Solinco Confidential vs Tour Bite

Solinco Tour Bite is one of Solinco’s firmest and most spin-focused strings. Its sharp square profile produces aggressive bite and a crisp connection with the ball.

Confidential provides comparable control and excellent spin but with greater pocketing and comfort. It occupies a useful middle position for players who find Tour Bite too demanding.

Choose Tour Bite for the firmest response and maximum surface bite. Choose Confidential for a more balanced combination of spin, control, feel and long-term consistency.

Solinco Confidential vs Confidential Soft

Solinco Confidential Soft is designed to provide a plusher response, greater comfort and easier depth while preserving the family’s directional control and spin.

Standard Confidential is firmer, lower powered and more control oriented. It better suits powerful players who want the stringbed to limit excess launch.

Choose Confidential Soft when comfort and additional pop are important. Choose the original Confidential for maximum precision and a more traditional performance-polyester response.

Solinco Confidential vs Babolat RPM Blast

Babolat RPM Blast is another shaped co-polyester designed for experienced players seeking spin and control. Both strings reward fast swings and provide limited free power.

RPM Blast offers a more dampened response and uses its octagonal profile to produce strong bite. Confidential feels more directly connected and provides exceptionally predictable targeting.

Choose RPM Blast for its distinctive dampened feel and spin-focused RPM response. Choose Confidential for firmer feedback, excellent control and strong playability duration.

Solinco Confidential vs Luxilon ALU Power

Luxilon ALU Power is a round co-polyester known for its crisp response, ball pocketing and controlled power. It does not use pronounced edges to generate spin.

Confidential is shaped, lower powered and more focused on spin and resistance to breaking. ALU Power provides a livelier and more directly responsive impact but may experience a more noticeable performance decline over time.

Choose ALU Power for its classic crisp feel and greater ball speed. Choose Confidential for shaped-string bite, durability and a more controlled response.

Final Verdict

Solinco Confidential is an advanced-player co-polyester built around exceptional control, excellent spin and strong durability. Its four-sided profile and low-powered response allow powerful players to accelerate confidently without producing excessive launch.

The string is firm, but its comfort and pocketing are better than its demanding construction might suggest. After the initial response settles, it should provide a controlled and consistent playing window that compares favorably with many shaped polyester strings.

Confidential is best suited to intermediate and advanced players with developed strokes. Beginners, arm-sensitive players and anyone needing effortless depth should consider a softer and more powerful alternative.

Its greatest strength is balance. Tour Bite offers a firmer and more aggressive spin response, while Hyper-G provides a slightly softer interpretation of the Solinco formula. Confidential sits between them with excellent precision, usable comfort and dependable long-term performance.

Frequently Asked Questions

What is Solinco Confidential made from?

Confidential is a co-polyester monofilament made with a proprietary chemical composition. Solinco has not published the precise ingredients used in the formula.

Is Solinco Confidential shaped?

Yes. Confidential has a four-sided shaped profile designed to provide additional ball bite and spin.

Is Solinco Confidential powerful?

Confidential is low powered compared with natural gut, multifilament and many softer polyester strings. It rewards players who create pace through their own racket-head speed.

Does Solinco Confidential provide good spin?

Yes. Its four angular edges interact with the ball, while string movement and snapback provide additional spin. It is particularly effective for players using fast upward swings.

Is Solinco Confidential comfortable?

It offers moderate to above-average comfort within the firm performance-polyester category. It remains significantly less comfortable than natural gut or multifilament.

Does Confidential require a break-in period?

Some independent evaluations describe a firm or board-like initial response that becomes more pocketing after the tension settles. The extent of this change depends on the racket, gauge and installation tension.

Is Solinco Confidential suitable for beginners?

It is generally too firm and low powered for beginners. Developing players will normally receive more assistance and comfort from synthetic gut or multifilament.

Which Confidential gauge should I choose?

Choose 1.25mm for the best overall balance. Choose 1.15mm or 1.20mm for greater response and spin, or 1.30mm for maximum stability and break resistance.

Does Solinco Confidential maintain tension well?

Its tension maintenance and playability duration are above average for a shaped polyester in several independent evaluations. It will still lose tension and elasticity with continued use.

Can Confidential be used in a hybrid?

Yes. Using Confidential in the mains preserves more of its spin and control. Using a softer material in the mains prioritizes comfort and power, although Confidential’s shaped profile may increase wear on softer strings.

Is Confidential softer than Tour Bite?

Confidential is generally considered more forgiving and pocketing than Tour Bite. It remains a firm polyester and should not be considered a soft string.

What is the difference between Confidential and Confidential Soft?

Confidential Soft provides greater comfort, pocketing and accessible power. The original Confidential provides a firmer, lower-powered and more control-focused response.

Is Solinco Confidential worth considering?

It is worth considering for experienced players who prioritize control, spin and durability. Players needing easy power or maximum comfort should choose a softer alternative.