Head to head
Gamma Zo Ice 16 vs Pacific X Force 17
X Force 17 leads on 4 of 6 measurements. The widest gap is string friction, where X Force 17 is 40 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 Ice 16464th
X Force 17434th
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Zo Ice 16747th
X Force 17740th
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Zo Ice 1657th
X Force 1751st
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Zo Ice 16742nd
X Force 17727th
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Zo Ice 16519th
X Force 17497th
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Zo Ice 16409th
X Force 17205th
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Zo Ice 16733rd
X Force 17712th
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 Ice 16 at 52 lb
String X Force 17 at 48.7 lb 22.1 kg
Coming from X Force 17 at 52 lb
String Zo Ice 16 at 55.2 lb 25.0 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 Ice 16 mains / X Force 17 crosses
X Force 17 mains / Zo Ice 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.
Zo Ice 16
~21 hours of play
X Force 17
~22 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Gamma Zo Ice 16 Polyester | 16 | find | 224 | 38 | 85 | 4.2 | 0.430 | 0.102 |
| Pacific X Force 17 Polyester | 17 | find | 226 | 36 | 86 | 4.5 | 0.367 | 0.081 |