Head to head
Alpha Gut 2000 16 vs Volkl Power-Fiber II 17
They split the measurements 3–3. The widest gap is ball bite, where Gut 2000 16 is 55 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.
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Gut 2000 16547th
Power-Fiber II 17675th
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Gut 2000 16133rd
Power-Fiber II 17138th
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Gut 2000 16680th
Power-Fiber II 17695th
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Gut 2000 1690th
Power-Fiber II 1779th
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Gut 2000 1651st
Power-Fiber II 17114th
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Gut 2000 16595th
Power-Fiber II 17687th
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Gut 2000 1683rd
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 Gut 2000 16 at 52 lb
String Power-Fiber II 17 at 51.8 lb 23.5 kg
Coming from Power-Fiber II 17 at 52 lb
String Gut 2000 16 at 52.1 lb 23.6 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.
Gut 2000 16 mains / Power-Fiber II 17 crosses
Power-Fiber II 17 mains / Gut 2000 16 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.
Gut 2000 16
~38 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 |
|---|---|---|---|---|---|---|---|---|
| Alpha Gut 2000 16 Nylon | 16 | $8.49 | 159 | 17 | 94 | 3.1 | 0.506 | 0.161 |
| Volkl Power-Fiber II 17 Nylon | 17 | $14.99 | 159 | 20 | 94 | 2.7 | 0.403 | 0.150 |
Add a third string Gut 2000 16 in full Power-Fiber II 17 in full