Head to head

Poly Star Energy 16 (1.30) vs Poly Star Energy 16L (1.25)

Energy 16 (1.30) leads on 4 of 6 measurements. The widest gap is string friction, where Energy 16 (1.30) is 13 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Poly Star

Energy 16 (1.30)

Polyester · 16 ga

Poly Star

Energy 16L (1.25)

Polyester · 16L ga

Stiffness lower = softer, kinder on the arm
17341st pct
17038th pct
Tension loss lower = stays where you strung it
66100th pct
68100th pct
Energy return higher = livelier, more free power
770th pct
760th pct
Spin potential higher = more spin off the string bed
4.030th pct
3.723rd pct
Ball bite higher = grabs the ball harder
0.3543rd pct
0.3543rd pct
String friction lower = strings slide and snap back
0.08944th pct
0.09657th 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 16 (1.30) at 52 lb

String Energy 16L (1.25) at 52.5 lb 23.8 kg

Coming from Energy 16L (1.25) at 52 lb

String Energy 16 (1.30) at 51.4 lb 23.3 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 16 (1.30) mains / Energy 16L (1.25) crosses

Stiffness40th pct · 1 measured
Tension loss100th pct · 1 measured
Energy return0th pct · 1 measured
Spin potential29th pct · 1 measured
Ball bite3rd pct · 1 measured
String friction48th pct · 1 measured

Energy 16L (1.25) mains / Energy 16 (1.30) crosses

Stiffness39th pct · 1 measured
Tension loss100th pct · 1 measured
Energy return0th pct · 1 measured
Spin potential24th pct · 1 measured
Ball bite3rd 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.

Energy 16 (1.30)

~10 hours of play

Energy 16L (1.25)

~10 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Poly Star Energy 16 (1.30) Polyester16find17366774.00.3540.089
Poly Star Energy 16L (1.25) Polyester16Lfind17068763.70.3540.096

Add a third string Energy 16 (1.30) in full Energy 16L (1.25) in full