String comparison
OG-Sheep Micro vs Synthetic Gut Power
Gosen OG-Sheep Micro against Wilson Synthetic Gut Power: ratings, specs and which one fits your junior.
The short answer
Both are synthetic gut strings. Synthetic Gut Power leads on power, durability and tension hold. They score the same for arm friendliness (4/5).
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 OG-Sheep Micro if…
- Best for: budget-conscious players at any level
- Best for: juniors developing their game
- Best for: home stringers and high school teams
Pick Synthetic Gut Power if…
- You want more power (8 vs 7 out of 10)
- You want more durability (7 vs 6 out of 10)
- You want more tension hold (6 vs 5 out of 10)
- Your player is younger (recommended from age 6 vs 8)
- Best for: young beginners (6+)
- Best for: budget-conscious families
- Best for: recreational players
Specs side by side
| Spec | OG-Sheep Micro | Synthetic Gut Power |
|---|---|---|
| Type | Synthetic gut | Synthetic gut |
| Construction | Solid core synthetic gut with thinner center core than OG Micro Super | Solid nylon core with high energy wraps |
| Gauges | 16, 17, 18 | 15, 16, 17 |
| Stiffness | Low | Medium |
| Set price | $4–6 | $4–6 |
| Reel price | $50–70 | $40–60 |
| Arm friendliness | 4/5 · Good | 4/5 · Good |
| Cost to maintain | 5/5 | 5/5 |
| Recommended from | Age 8 | Age 6 |
| Levels | Beginner, Intermediate, Advanced | Beginner, Intermediate |
| Play styles | All court, Touch player, Serve and volley | All court, Beginner |
| Junior tension | 52-58 lbs for juniors. At 56 lbs produces nice "thud" rather than "ping". | 50-55 lbs for juniors. |
OG-Sheep Micro in short
Born in 1981, Gosen OG-Sheep Micro has stood the test of time as one of the best value strings available. This Japanese synthetic gut offers great all-around playability with no huge deficits preventing the full range of shots. It's slightly softer and more powerful than OG Micro Super due to its thinner center core. Poly players adapting to it found the transition seamless. For the player who simply wants great all-around playability at an almost unbelievably low price, OG-Sheep Micro is as good as it gets.
Synthetic Gut Power in short
Wilson Synthetic Gut Power is an arm-friendly synthetic gut tennis string ideal for players looking for a balance between added power and crisp feel. The solid nylon core provides crisp feel while high energy wraps increase responsiveness for more power. Reviewers noted how easy the string makes things - you don't have to put 110% into every shot to get the ball moving. With "silky touch" feel and great value, it's one of the most affordable string options available.
OG-Sheep Micro vs Synthetic Gut Power: quick answers
Which has more spin, OG-Sheep Micro or Synthetic Gut Power?
They tie on our spin rating (5/10 each).
Which is more arm-friendly for a junior?
They score the same, 4/5. OG-Sheep Micro is recommended from age 8 and Synthetic Gut Power from age 6.
Which lasts longer?
Wilson Synthetic Gut Power rates 7/10 for durability against 6/10.
Which is cheaper?
OG-Sheep Micro costs about $4–6 a set and Synthetic Gut Power about $4–6, at typical retail.
The short answer and the "pick if" lists are generated from our ratings and junior data only. Data verified 2025-01 (OG-Sheep Micro) and 2025-01 (Synthetic Gut Power).