MSV

Focus Hex 17L (1.18)

Polyester Gauge 17L 1.18 mm In production

Lab measurements for MSV Focus Hex 17L (1.18), 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

224lb/in

lower = softer, kinder on the arm

Tension loss

28%

lower = stays where you strung it

Energy return

88%

higher = livelier, more free power

Spin potential

6.5

higher = more spin off the string bed

Ball bite

0.466COF

higher = grabs the ball harder

Snapback

0.072COF

lower = strings slide and snap back

How it ranks against all 789 strings

Stiffness 224 lb/in · 90th pct

Stiffer than 90% of strings tested — punishingly firm — control at the cost of comfort.

Tension loss 28 % · 41st pct

Sheds more tension than 41% of strings tested.

Energy return 88 % · 48th pct

Livelier than 48% of strings tested.

Spin potential 6.5 · 86th pct

More spin potential than 86% of strings tested.

Ball bite 0.466 COF · 64th pct

Grips the ball harder than 64% of strings tested.

Snapback 0.072 COF · 7th pct

More string-on-string friction than 7% of strings tested — slides and snaps back freely.

Strings that play like this

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

More from MSV

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 Focus Hex 17L (1.18) against 789 strings Find the right string for me