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Signum Pro

Poly Megaforce 16

Polyester Gauge 16 1.29 mm In production

Lab measurements for Signum Pro Poly Megaforce 16, 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

235lb/in

lower = softer, kinder on the arm

Tension loss

35%

lower = stays where you strung it

Energy return

87%

higher = livelier, more free power

Spin potential

4.3

higher = more spin off the string bed

Ball bite

0.420COF

higher = grabs the ball harder

Snapback

0.097COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 235 lb/in · 96th pct

Stiffer than 96% of strings tested — punishingly firm — control at the cost of comfort.

Tension loss 35 % · 58th pct

Sheds more tension than 58% of strings tested.

Energy return 87 % · 35th pct

Livelier than 35% of strings tested.

Spin potential 4.3 · 37th pct

More spin potential than 37% of strings tested.

Ball bite 0.420 COF · 38th pct

Grips the ball harder than 38% of strings tested.

Snapback 0.097 COF · 59th pct

More string-on-string friction than 59% of strings tested.

Strings that play like this

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

Klip K-Boom 16/1.30 97% match Babolat RPM Blast 17/1.25 96% match Tecnifibre Black Code 17 95% match Babolat Hurricane Feel 17 95% match Tecnifibre Razor Code 16 (1.30) 95% match Pacific X Force 17 94% 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 Poly Megaforce 16 against 789 strings Find the right string for me