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Signum Pro

Plasma HEXtreme 16 (1.30)

Polyester Gauge 16 1.26 mm In production

Lab measurements for Signum Pro Plasma HEXtreme 16 (1.30), ranked against all 789 strings in the database. Every figure below is a testing-machine result at a fixed reference tension, not a playtest opinion.

Measured values

Stiffness

226lb/in

lower = softer, kinder on the arm

Tension loss

25%

lower = stays where you strung it

Energy return

89%

higher = livelier, more free power

Spin potential

7.3

higher = more spin off the string bed

Ball bite

0.594COF

higher = grabs the ball harder

Snapback

0.081COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 226 lb/in · 91st pct

Stiffer than 91% of strings tested — punishingly firm — control at the cost of comfort.

Tension loss 25 % · 34th pct

Sheds more tension than 34% of strings tested.

Energy return 89 % · 55th pct

Livelier than 55% of strings tested.

Spin potential 7.3 · 93rd pct

More spin potential than 93% of strings tested — elite spin generation.

Ball bite 0.594 COF · 95th pct

Grips the ball harder than 95% of strings tested — bites the ball hard through the brush.

Snapback 0.081 COF · 26th pct

More string-on-string friction than 26% of strings tested.

Strings that play like this

Closest matches across stiffness, tension loss, energy return and spin potential.

Solinco Hyper-G 16 97% match Head Lynx Tour 17 (1.25) 96% match Weiss Cannon Blue Rock N Power 96% match Tecnifibre Razor Spin 17/1.25 95% match Tecnifibre Black Code 4S 16 (1.30) 95% match Luxilon 4G Soft 1.25 95% match

More from Signum Pro

What these numbers mean

Stiffness · lb/in

How much the string bed resists deflection. Higher plays firmer and more controlled; lower plays softer and easier on the arm.

Tension loss · %

Share of the reference tension the string sheds under a fixed test protocol. Lower means the bed stays where you strung it for longer.

Energy return · %

Share of impact energy handed back to the ball. Higher plays livelier and more powerful.

Spin potential

Ball friction divided by string-on-string friction. Higher means better bite with a cleaner snapback, so more spin.

Ball bite · COF

String-on-ball friction. Higher grabs the ball harder through the brush.

Snapback · COF

String-on-string friction. Lower lets the mains slide and snap back into place after impact.

Compare Plasma HEXtreme 16 (1.30) against 789 strings Find the right string for me