Head to head
Gosen OG Sheep Micro 18 vs Volkl Power-Fiber II 17
They split the measurements 3–3. The widest gap is ball bite, where Power-Fiber II 17 is 21 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.
Measured, side by side
Bars are percentile against all 791 strings, and the marked side is the one that measures better, which is not always the one you want. A firmer bed is worse for your elbow and better for your control, and no measurement knows which of those you came for.
Which one wins, by problem
Each string's standing on the site's rankings, out of every measured string in the database. This is where a comparison stops being arithmetic and starts being a decision.
-
OG Sheep Micro 18668th
Power-Fiber II 17675th
-
OG Sheep Micro 18146th
Power-Fiber II 17138th
-
OG Sheep Micro 18690th
Power-Fiber II 17695th
-
OG Sheep Micro 1865th
Power-Fiber II 1779th
-
OG Sheep Micro 18160th
Power-Fiber II 17114th
-
OG Sheep Micro 18715th
Power-Fiber II 17687th
-
OG Sheep Micro 1881st
Power-Fiber II 1782nd
Swapping between them: what tension?
Bed stiffness is published at one reference tension, so the only honest conversion is to scale it. These are starting points from 52 lb, not prescriptions. The calculator takes your own tension.
Coming from OG Sheep Micro 18 at 52 lb
String Power-Fiber II 17 at 53.1 lb 24.1 kg
Coming from Power-Fiber II 17 at 52 lb
String OG Sheep Micro 18 at 50.8 lb 23.0 kg
Hybrid: what if you used both?
Estimated, not measured. No hybrid combination has been tested as a bed. These figures are the two strings' own lab measurements weighted by how much of the bed each one actually is. Treat them as a guide to which way a pairing moves, never as lab data.
OG Sheep Micro 18 mains / Power-Fiber II 17 crosses
Power-Fiber II 17 mains / OG Sheep Micro 18 crosses
Which goes dead first?
Estimated from tension loss, which is the only thing the database measures about ageing. This is when the bed stops playing the way you strung it, not when the string breaks.
OG Sheep Micro 18
~33 hours of play
Power-Fiber II 17
~35 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Gosen OG Sheep Micro 18 Nylon | 18 | find | 159 | 21 | 94 | 3.2 | 0.360 | 0.114 |
| Volkl Power-Fiber II 17 Nylon | 17 | $14.99 | 159 | 20 | 94 | 2.7 | 0.403 | 0.150 |
Add a third string OG Sheep Micro 18 in full Power-Fiber II 17 in full