StringSpec
String finder

Browse all 791

Head to head

L-Tec Premium Pro OS 16L vs Pacific X Force 16L (1.29)

X Force 16L (1.29) leads on 4 of 6 measurements. The widest gap is ball bite, where X Force 16L (1.29) is 45 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

L-Tec

Premium Pro OS 16L

Polyester · 16L ga

Pacific

X Force 16L (1.29)

Polyester · 16L ga

Stiffness lower = softer, kinder on the arm
25499th pct
22087th pct
Tension loss lower = stays where you strung it
2639th pct
2535th pct
Energy return higher = livelier, more free power
9061st pct
8953rd pct
Spin potential higher = more spin off the string bed
4.337th pct
4.440th pct
Ball bite higher = grabs the ball harder
0.40024th pct
0.47668th pct
String friction lower = strings slide and snap back
0.09455th pct
0.10874th 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 Premium Pro OS 16L at 52 lb

String X Force 16L (1.29) at 60.1 lb 27.3 kg

Coming from X Force 16L (1.29) at 52 lb

String Premium Pro OS 16L at 45.0 lb 20.4 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.

Premium Pro OS 16L mains / X Force 16L (1.29) crosses

Stiffness98th pct · 1 measured
Tension loss38th pct · 1 measured
Energy return58th pct · 1 measured
Spin potential38th pct · 1 measured
Ball bite30th pct · 1 measured
String friction60th pct · 1 measured

X Force 16L (1.29) mains / Premium Pro OS 16L crosses

Stiffness95th pct · 1 measured
Tension loss37th pct · 1 measured
Energy return57th pct · 1 measured
Spin potential38th pct · 1 measured
Ball bite63rd pct · 1 measured
String friction69th 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.

Premium Pro OS 16L

~28 hours of play

X Force 16L (1.29)

~29 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
L-Tec Premium Pro OS 16L Polyester16Lfind25426904.30.4000.094
Pacific X Force 16L (1.29) Polyester16Lfind22025894.40.4760.108

Add a third string Premium Pro OS 16L in full X Force 16L (1.29) in full