Head to head
Prince Lightning XX 17 vs Prince Topspin W/ Duraflex 15L
Topspin W/ Duraflex 15L leads on 3 of 6 measurements. The widest gap is ball bite, where Topspin W/ Duraflex 15L is 33 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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Lightning XX 17619th
Topspin W/ Duraflex 15L564th
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Lightning XX 17259th
Topspin W/ Duraflex 15L262nd
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Lightning XX 17548th
Topspin W/ Duraflex 15L540th
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Lightning XX 17192nd
Topspin W/ Duraflex 15L165th
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Lightning XX 17108th
Topspin W/ Duraflex 15L57th
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Lightning XX 17674th
Topspin W/ Duraflex 15L465th
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Lightning XX 17194th
Topspin W/ Duraflex 15L173rd
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 Lightning XX 17 at 52 lb
String Topspin W/ Duraflex 15L at 48.9 lb 22.2 kg
Coming from Topspin W/ Duraflex 15L at 52 lb
String Lightning XX 17 at 55.6 lb 25.2 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.
Lightning XX 17 mains / Topspin W/ Duraflex 15L crosses
Topspin W/ Duraflex 15L mains / Lightning XX 17 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.
Lightning XX 17
~35 hours of play
Topspin W/ Duraflex 15L
~37 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Prince Lightning XX 17 Nylon | 17 | find | 177 | 19 | 93 | 3.5 | 0.387 | 0.110 |
| Prince Topspin W/ Duraflex 15L Nylon | 15L | find | 182 | 17 | 94 | 3.5 | 0.437 | 0.126 |
Add a third string Lightning XX 17 in full Topspin W/ Duraflex 15L in full