Head to head
Prince Premier Power 18 vs Tourna Quasi Gut 17
They split the measurements 3–3. The widest gap is ball bite, where Quasi Gut 17 is 41 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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Premier Power 18318th
Quasi Gut 17253rd
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Premier Power 1844th
Quasi Gut 1786th
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Premier Power 18705th
Quasi Gut 17671st
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Premier Power 1883rd
Quasi Gut 17154th
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Premier Power 18151st
Quasi Gut 17269th
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Premier Power 18634th
Quasi Gut 17557th
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Premier Power 1871st
Quasi Gut 17154th
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 Premier Power 18 at 52 lb
String Quasi Gut 17 at 57.5 lb 26.1 kg
Coming from Quasi Gut 17 at 52 lb
String Premier Power 18 at 47.0 lb 21.3 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.
Premier Power 18 mains / Quasi Gut 17 crosses
Quasi Gut 17 mains / Premier Power 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.
Premier Power 18
~34 hours of play
Quasi Gut 17
~30 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Prince Premier Power 18 Nylon | 18 | find | 143 | 21 | 93 | 5.0 | 0.430 | 0.086 |
| Tourna Quasi Gut 17 Nylon | 17 | $9.95 | 129 | 25 | 91 | 5.2 | 0.524 | 0.101 |
Add a third string Premier Power 18 in full Quasi Gut 17 in full