Head to head
Volkl V-Pro 18 vs Weiss Cannon Black 5 Edge 17 (1.24)
They split the measurements 3–3. The widest gap is string friction, where V-Pro 18 is 17 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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V-Pro 18333rd
Black 5 Edge 17 (1.24)364th
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V-Pro 18570th
Black 5 Edge 17 (1.24)561st
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V-Pro 18234th
Black 5 Edge 17 (1.24)264th
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V-Pro 18445th
Black 5 Edge 17 (1.24)365th
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V-Pro 18426th
Black 5 Edge 17 (1.24)407th
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V-Pro 18429th
Black 5 Edge 17 (1.24)458th
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V-Pro 18462nd
Black 5 Edge 17 (1.24)394th
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 V-Pro 18 at 52 lb
String Black 5 Edge 17 (1.24) at 54.2 lb 24.6 kg
Coming from Black 5 Edge 17 (1.24) at 52 lb
String V-Pro 18 at 48.7 lb 22.1 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.
V-Pro 18 mains / Black 5 Edge 17 (1.24) crosses
Black 5 Edge 17 (1.24) mains / V-Pro 18 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.
V-Pro 18
~24 hours of play
Black 5 Edge 17 (1.24)
~24 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Volkl V-Pro 18 Polyester | 18 | $8.99 | 213 | 33 | 88 | 4.9 | 0.429 | 0.087 |
| Weiss Cannon Black 5 Edge 17 (1.24) Polyester | 17 | find | 216 | 33 | 90 | 4.7 | 0.448 | 0.095 |
Add a third string V-Pro 18 in full Black 5 Edge 17 (1.24) in full