Head to head
LaserFibre Vorso 17 (1.23) vs Signum Pro Tornado 18 (1.17)
They split the measurements 3–3. The widest gap is string friction, where Vorso 17 (1.23) is 29 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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Vorso 17 (1.23)122nd
Tornado 18 (1.17)150th
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Vorso 17 (1.23)346th
Tornado 18 (1.17)323rd
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Vorso 17 (1.23)432nd
Tornado 18 (1.17)448th
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Vorso 17 (1.23)357th
Tornado 18 (1.17)378th
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Vorso 17 (1.23)545th
Tornado 18 (1.17)522nd
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Vorso 17 (1.23)294th
Tornado 18 (1.17)85th
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Vorso 17 (1.23)369th
Tornado 18 (1.17)362nd
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 Vorso 17 (1.23) at 52 lb
String Tornado 18 (1.17) at 55.2 lb 25.0 kg
Coming from Tornado 18 (1.17) at 52 lb
String Vorso 17 (1.23) at 49.0 lb 22.2 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.
Vorso 17 (1.23) mains / Tornado 18 (1.17) crosses
Tornado 18 (1.17) mains / Vorso 17 (1.23) 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.
Vorso 17 (1.23)
~19 hours of play
Tornado 18 (1.17)
~20 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| LaserFibre Vorso 17 (1.23) Polyester | 17 | find | 178 | 42 | 87 | 6.2 | 0.486 | 0.079 |
| Signum Pro Tornado 18 (1.17) Polyester | 18 | find | 167 | 39 | 86 | 5.9 | 0.546 | 0.092 |
Add a third string Vorso 17 (1.23) in full Tornado 18 (1.17) in full