String comparison
Pro Line Rough vs Hyper-G
Kirschbaum Pro Line Rough against Solinco Hyper-G: ratings, specs and which one fits your junior.
The short answer
Both are polyester strings. Hyper-G leads on power, spin, control and durability. They score the same for arm friendliness (2/5).
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 Pro Line Rough if…
- Your player is younger (recommended from age 13 vs 14)
- Best for: spin-focused players
- Best for: heavy topspin baseliners
- Best for: those who like Pro Line II but want more spin
Pick Hyper-G if…
- You want more power (7 vs 6 out of 10)
- You want more spin (10 vs 9 out of 10)
- You want more control (9 vs 8 out of 10)
- You want more durability (8 vs 7 out of 10)
- You restring often and want it cheaper to keep up (cost score 5/5 vs 4/5)
- Best for: heavy topspin players
- Best for: advanced juniors with fast, full swings
- Best for: players looking for spin + control at great value
Specs side by side
| Spec | Pro Line Rough | Hyper-G |
|---|---|---|
| Type | Polyester | Polyester |
| Construction | Textured round co-polyester monofilament | Square-shaped co-polyester monofilament |
| Gauges | 16L, 17, 18 | 15L, 16, 16L, 17, 18, 19, 20 |
| Stiffness | Medium high | Medium high |
| Set price | $11–14 | $12–13 |
| Reel price | $95–115 | $165–175 |
| Arm friendliness | 2/5 · Low | 2/5 · Low |
| Cost to maintain | 4/5 | 5/5 |
| Recommended from | Age 13 | Age 14 |
| Levels | Intermediate, Advanced, Elite | Advanced, Elite |
| Play styles | Baseliner, Big hitter | Baseliner, Big hitter |
| Junior tension | 48-52 lbs for juniors. Rough texture grabs ball - can string lower. | 46-50 lbs for juniors. Square shape grips well so can string lower for more comfort. |
Pro Line Rough in short
Kirschbaum Pro Line Rough adds a textured surface to the proven Pro Line formula for enhanced spin potential. The rough surface bites the ball at contact, allowing players to generate more RPMs while maintaining the German precision and quality Kirschbaum is known for. Like other textured polys, it trades some durability for increased spin, but offers excellent value for spin-seekers.
Hyper-G in short
Since 2014, Hyper-G has endured as the top string choice for tennis players around the globe. Developed for an ATP top 50 player, this shaped co-poly with an impressive combination of spin and precision allows big hitters to take massive cuts at the ball without having to worry about overhitting. The square profile with sharp edges bites the ball at contact, generating massive spin. Topspin players who like hitting balls that dive sharply and explode off the court should love this string. With an unmatched selection of 7 gauges from 15L to 20, there's a Hyper-G for every playing style.
Pro Line Rough vs Hyper-G: quick answers
Which has more spin, Pro Line Rough or Hyper-G?
Solinco Hyper-G, with a spin rating of 10/10 against 9/10.
Which is more arm-friendly for a junior?
They score the same, 2/5. Pro Line Rough is recommended from age 13 and Hyper-G from age 14.
Which lasts longer?
Solinco Hyper-G rates 8/10 for durability against 7/10.
Which is cheaper?
Pro Line Rough costs about $11–14 a set and Hyper-G about $12–13, at typical retail.
The short answer and the "pick if" lists are generated from our ratings and junior data only. Data verified 2025-01 (Pro Line Rough) and 2025-01 (Hyper-G).