Head to head

Double AR WTS 25 (1.25) vs Polyfibre Black Venom Rough 16L (1.25)

WTS 25 (1.25) leads on 4 of 6 measurements. The widest gap is string friction, where WTS 25 (1.25) is 17 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Double AR

WTS 25 (1.25)

Polyester

Polyfibre

Black Venom Rough 16L (1.25)

Polyester · 16L ga

Stiffness lower = softer, kinder on the arm
16836th pct
16229th pct
Tension loss lower = stays where you strung it
5795th pct
6197th pct
Energy return higher = livelier, more free power
803rd pct
814th pct
Spin potential higher = more spin off the string bed
7.393rd pct
6.282nd pct
Ball bite higher = grabs the ball harder
0.56492nd pct
0.53187th pct
String friction lower = strings slide and snap back
0.07717th pct
0.08534th 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 WTS 25 (1.25) at 52 lb

String Black Venom Rough 16L (1.25) at 53.8 lb 24.4 kg

Coming from Black Venom Rough 16L (1.25) at 52 lb

String WTS 25 (1.25) at 50.2 lb 22.8 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.

WTS 25 (1.25) mains / Black Venom Rough 16L (1.25) crosses

Stiffness34th pct · 1 measured
Tension loss96th pct · 1 measured
Energy return4th pct · 1 measured
Spin potential91st pct · 1 measured
Ball bite91st pct · 1 measured
String friction21st pct · 1 measured

Black Venom Rough 16L (1.25) mains / WTS 25 (1.25) crosses

Stiffness31st pct · 1 measured
Tension loss97th pct · 1 measured
Energy return4th pct · 1 measured
Spin potential85th pct · 1 measured
Ball bite88th pct · 1 measured
String friction31st 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.

WTS 25 (1.25)

~11 hours of play

Black Venom Rough 16L (1.25)

~11 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Double AR WTS 25 (1.25) Polyesterfind16857807.30.5640.077
Polyfibre Black Venom Rough 16L (1.25) Polyester16Lfind16261816.20.5310.085

Add a third string WTS 25 (1.25) in full Black Venom Rough 16L (1.25) in full