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Head to head

Gamma Zo Magic 16 vs Luxilon 4G Rough 16L

4G Rough 16L leads on 6 of 6 measurements. The widest gap is stiffness, where 4G Rough 16L is 15 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Gamma

Zo Magic 16

Polyester · 16 ga

Luxilon

4G Rough 16L

Polyester · 16L ga

Stiffness lower = softer, kinder on the arm
24899th pct
21684th pct
Tension loss lower = stays where you strung it
3455th pct
3353rd pct
Energy return higher = livelier, more free power
8957th pct
9060th pct
Spin potential higher = more spin off the string bed
4.132nd pct
4.235th pct
Ball bite higher = grabs the ball harder
0.39520th pct
0.39923rd pct
String friction lower = strings slide and snap back
0.09759th pct
0.09455th pct

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.

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 Magic 16 at 52 lb

String 4G Rough 16L at 66.2 lb 30.0 kg

Coming from 4G Rough 16L at 52 lb

String Zo Magic 16 at 30.0 lb 13.6 kg

Clamped. The proportional answer was 27.3 lb, outside what most frames are rated for.

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 Magic 16 mains / 4G Rough 16L crosses

Stiffness96th pct · 1 measured
Tension loss55th pct · 1 measured
Energy return58th pct · 1 measured
Spin potential33rd pct · 1 measured
Ball bite21st pct · 1 measured
String friction57th pct · 1 measured

4G Rough 16L mains / Zo Magic 16 crosses

Stiffness93rd pct · 1 measured
Tension loss54th pct · 1 measured
Energy return59th pct · 1 measured
Spin potential33rd pct · 1 measured
Ball bite23rd pct · 1 measured
String friction56th pct · 1 measured

Open this in the hybrid builder

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 Magic 16

~23 hours of play

4G Rough 16L

~24 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Gamma Zo Magic 16 Polyester16find24834894.10.3950.097
Luxilon 4G Rough 16L Polyester16L$21.5021633904.20.3990.094

Add a third string Zo Magic 16 in full 4G Rough 16L in full