Head to head
Gamma Professional 18 (1.22) vs Prince Premier Power 17
They split the measurements 3–3. The widest gap is ball bite, where Professional 18 (1.22) is 26 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.
Measured, side by side
Bars are percentile against all 788 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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Professional 18 (1.22)488th
Premier Power 17466th
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Professional 18 (1.22)29th
Premier Power 1752nd
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Professional 18 (1.22)758th
Premier Power 17711th
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Professional 18 (1.22)55th
Premier Power 1788th
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Professional 18 (1.22)189th
Premier Power 17133rd
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Professional 18 (1.22)708th
Premier Power 17650th
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Professional 18 (1.22)59th
Premier Power 1778th
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 Professional 18 (1.22) at 52 lb
String Premier Power 17 at 44.4 lb 20.1 kg
Coming from Premier Power 17 at 52 lb
String Professional 18 (1.22) at 60.9 lb 27.6 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.
Professional 18 (1.22) mains / Premier Power 17 crosses
Premier Power 17 mains / Professional 18 (1.22) 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.
Professional 18 (1.22)
~32 hours of play
Premier Power 17
~35 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Gamma Professional 18 (1.22) Nylon | 18 | find | 124 | 22 | 93 | 3.9 | 0.450 | 0.114 |
| Prince Premier Power 17 Nylon | 17 | find | 145 | 20 | 93 | 4.3 | 0.410 | 0.096 |
Add a third string Professional 18 (1.22) in full Premier Power 17 in full