Head to head
Leopard Plus Control 16 vs Signum Pro Poly Speed Spin 1.28
Plus Control 16 leads on 4 of 6 measurements. The widest gap is ball bite, where Poly Speed Spin 1.28 is 58 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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Plus Control 16551st
Poly Speed Spin 1.28417th
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Plus Control 16760th
Poly Speed Spin 1.28779th
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Plus Control 1650th
Poly Speed Spin 1.288th
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Plus Control 16749th
Poly Speed Spin 1.28770th
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Plus Control 16537th
Poly Speed Spin 1.28553rd
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Plus Control 16233rd
Poly Speed Spin 1.28443rd
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Plus Control 16742nd
Poly Speed Spin 1.28765th
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 Plus Control 16 at 52 lb
String Poly Speed Spin 1.28 at 45.6 lb 20.7 kg
Coming from Poly Speed Spin 1.28 at 52 lb
String Plus Control 16 at 62.8 lb 28.5 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.
Plus Control 16 mains / Poly Speed Spin 1.28 crosses
Poly Speed Spin 1.28 mains / Plus Control 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.
Plus Control 16
~20 hours of play
Poly Speed Spin 1.28
~19 hours of play
Both strings in full
| String | Gauge | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Snap COF |
|---|---|---|---|---|---|---|---|
| Leopard Plus Control 16 Polyester | 16 | 226 | 40 | 85 | 3.9 | 0.378 | 0.097 |
| Signum Pro Poly Speed Spin 1.28 Polyester | — | 246 | 41 | 85 | 4.3 | 0.480 | 0.112 |
Add a third string Plus Control 16 in full Poly Speed Spin 1.28 in full