Head to head

Poly Star Energy 16L (1.25) vs Prince Poly Spin 3D

They split the measurements 3–3. The widest gap is string friction, where Energy 16L (1.25) is 21 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Poly Star

Energy 16L (1.25)

Polyester · 16L ga

Prince

Poly Spin 3D

Polyester

Stiffness lower = softer, kinder on the arm
17038th pct
17945th pct
Tension loss lower = stays where you strung it
68100th pct
6097th pct
Energy return higher = livelier, more free power
760th pct
803rd pct
Spin potential higher = more spin off the string bed
3.723rd pct
3.314th pct
Ball bite higher = grabs the ball harder
0.3543rd pct
0.3739th pct
String friction lower = strings slide and snap back
0.09657th 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 Energy 16L (1.25) at 52 lb

String Poly Spin 3D at 50.6 lb 23.0 kg

Coming from Poly Spin 3D at 52 lb

String Energy 16L (1.25) at 53.4 lb 24.2 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.

Energy 16L (1.25) mains / Poly Spin 3D crosses

Stiffness42nd pct · 1 measured
Tension loss100th pct · 1 measured
Energy return1st pct · 1 measured
Spin potential22nd pct · 1 measured
Ball bite4th pct · 1 measured
String friction64th pct · 1 measured

Poly Spin 3D mains / Energy 16L (1.25) crosses

Stiffness43rd pct · 1 measured
Tension loss98th pct · 1 measured
Energy return1st pct · 1 measured
Spin potential15th pct · 1 measured
Ball bite8th pct · 1 measured
String friction74th 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.

Energy 16L (1.25)

~10 hours of play

Poly Spin 3D

~11 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Poly Star Energy 16L (1.25) Polyester16Lfind17068763.70.3540.096
Prince Poly Spin 3D Polyesterfind17960803.30.3730.113

Add a third string Energy 16L (1.25) in full Poly Spin 3D in full