Head to head

Kirschbaum P2 16/1.30 vs Signum Pro Poly-Plasma Pure 16L

P2 16/1.30 leads on 4 of 6 measurements. The widest gap is ball bite, where Poly-Plasma Pure 16L is 34 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Kirschbaum

P2 16/1.30

Polyester · 16 ga

Signum Pro

Poly-Plasma Pure 16L

Polyester · 16L ga

Stiffness lower = softer, kinder on the arm
21987th pct
22188th pct
Tension loss lower = stays where you strung it
3865th pct
4168th pct
Energy return higher = livelier, more free power
8631st pct
8625th pct
Spin potential higher = more spin off the string bed
5.262nd pct
5.671st pct
Ball bite higher = grabs the ball harder
0.41231st pct
0.46765th pct
String friction lower = strings slide and snap back
0.07921st pct
0.08330th pct

Bars are percentile against all 788 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 P2 16/1.30 at 52 lb

String Poly-Plasma Pure 16L at 47.3 lb 21.5 kg

Coming from Poly-Plasma Pure 16L at 52 lb

String P2 16/1.30 at 64.1 lb 29.1 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.

P2 16/1.30 mains / Poly-Plasma Pure 16L crosses

Stiffness88th pct · 1 measured
Tension loss66th pct · 1 measured
Energy return29th pct · 1 measured
Spin potential64th pct · 1 measured
Ball bite38th pct · 1 measured
String friction23rd pct · 1 measured

Poly-Plasma Pure 16L mains / P2 16/1.30 crosses

Stiffness88th pct · 1 measured
Tension loss67th pct · 1 measured
Energy return27th pct · 1 measured
Spin potential70th pct · 1 measured
Ball bite61st pct · 1 measured
String friction28th 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.

P2 16/1.30

~21 hours of play

Poly-Plasma Pure 16L

~20 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Kirschbaum P2 16/1.30 Polyester16find21938865.20.4120.079
Signum Pro Poly-Plasma Pure 16L Polyester16Lfind22141865.60.4670.083

Add a third string P2 16/1.30 in full Poly-Plasma Pure 16L in full