Head to head

Gamma Zo Power 16L vs Prince Poly Spin 3D

They split the measurements 3–3. The widest gap is stiffness, where Poly Spin 3D is 16 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Gamma

Zo Power 16L

Polyester · 16L ga

Prince

Poly Spin 3D

Polyester

Stiffness lower = softer, kinder on the arm
19361st pct
17945th pct
Tension loss lower = stays where you strung it
5795th pct
6097th pct
Energy return higher = livelier, more free power
826th pct
803rd pct
Spin potential higher = more spin off the string bed
2.98th pct
3.314th pct
Ball bite higher = grabs the ball harder
0.38314th pct
0.3739th pct
String friction lower = strings slide and snap back
0.13288th pct
0.11378th 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 Power 16L at 52 lb

String Poly Spin 3D at 58.8 lb 26.7 kg

Coming from Poly Spin 3D at 52 lb

String Zo Power 16L at 30.0 lb 13.6 kg

Clamped. The proportional answer was 17.9 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 Power 16L mains / Poly Spin 3D crosses

Stiffness55th pct · 1 measured
Tension loss96th pct · 1 measured
Energy return5th pct · 1 measured
Spin potential8th pct · 1 measured
Ball bite13th pct · 1 measured
String friction87th pct · 1 measured

Poly Spin 3D mains / Zo Power 16L crosses

Stiffness52nd pct · 1 measured
Tension loss96th pct · 1 measured
Energy return5th pct · 1 measured
Spin potential14th pct · 1 measured
Ball bite10th pct · 1 measured
String friction82nd 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 Power 16L

~11 hours of play

Poly Spin 3D

~11 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Gamma Zo Power 16L Polyester16Lfind19357822.90.3830.132
Prince Poly Spin 3D Polyesterfind17960803.30.3730.113

Add a third string Zo Power 16L in full Poly Spin 3D in full