Head to head
Gamma Zo Dart 17 (1.25) vs Head Hawk Rough 17
Hawk Rough 17 leads on 4 of 6 measurements. The widest gap is string friction, where Zo Dart 17 (1.25) is 25 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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Zo Dart 17 (1.25)246th
Hawk Rough 17314th
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Zo Dart 17 (1.25)479th
Hawk Rough 17373rd
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Zo Dart 17 (1.25)280th
Hawk Rough 17411th
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Zo Dart 17 (1.25)373rd
Hawk Rough 17315th
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Zo Dart 17 (1.25)317th
Hawk Rough 17263rd
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Zo Dart 17 (1.25)93rd
Hawk Rough 17196th
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Zo Dart 17 (1.25)359th
Hawk Rough 17315th
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 Zo Dart 17 (1.25) at 52 lb
String Hawk Rough 17 at 53.5 lb 24.3 kg
Coming from Hawk Rough 17 at 52 lb
String Zo Dart 17 (1.25) at 50.6 lb 23.0 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.
Zo Dart 17 (1.25) mains / Hawk Rough 17 crosses
Hawk Rough 17 mains / Zo Dart 17 (1.25) 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.
Zo Dart 17 (1.25)
~28 hours of play
Hawk Rough 17
~31 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Gamma Zo Dart 17 (1.25) Polyester | 17 | find | 207 | 27 | 89 | 5.3 | 0.452 | 0.085 |
| Head Hawk Rough 17 Polyester | 17 | find | 201 | 24 | 91 | 4.9 | 0.476 | 0.097 |
Add a third string Zo Dart 17 (1.25) in full Hawk Rough 17 in full