Head to head
Luxilon M2 Pro 125/16 vs Prince Poly Spin 3D
M2 Pro 125/16 leads on 4 of 6 measurements. The widest gap is string friction, where M2 Pro 125/16 is 18 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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M2 Pro 125/16617th
Poly Spin 3D657th
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M2 Pro 125/16501st
Poly Spin 3D502nd
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M2 Pro 125/16393rd
Poly Spin 3D400th
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M2 Pro 125/16643rd
Poly Spin 3D691st
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M2 Pro 125/16732nd
Poly Spin 3D761st
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M2 Pro 125/16180th
Poly Spin 3D451st
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M2 Pro 125/16648th
Poly Spin 3D693rd
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 M2 Pro 125/16 at 52 lb
String Poly Spin 3D at 52.0 lb 23.6 kg
Coming from Poly Spin 3D at 52 lb
String M2 Pro 125/16 at 52.0 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.
M2 Pro 125/16 mains / Poly Spin 3D crosses
Poly Spin 3D mains / M2 Pro 125/16 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.
M2 Pro 125/16
~12 hours of play
Poly Spin 3D
~11 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Luxilon M2 Pro 125/16 Polyester | 16 | find | 182 | 53 | 83 | 3.6 | 0.348 | 0.098 |
| Prince Poly Spin 3D Polyester | — | find | 179 | 60 | 80 | 3.3 | 0.373 | 0.113 |
Add a third string M2 Pro 125/16 in full Poly Spin 3D in full