Head to head

MSV Hepta-Twist 17 vs Solinco Outlast 17

Hepta-Twist 17 leads on 5 of 6 measurements. The widest gap is ball bite, where Hepta-Twist 17 is 44 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

MSV

Hepta-Twist 17

Polyester · 17 ga

Solinco

Outlast 17

Polyester · 17 ga

Stiffness lower = softer, kinder on the arm
18148th pct
18349th pct
Tension loss lower = stays where you strung it
5088th pct
5089th pct
Energy return higher = livelier, more free power
8414th pct
8413th pct
Spin potential higher = more spin off the string bed
5.773rd pct
5.569th pct
Ball bite higher = grabs the ball harder
0.48271st pct
0.40627th pct
String friction lower = strings slide and snap back
0.08534th pct
0.07412th 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 Hepta-Twist 17 at 52 lb

String Outlast 17 at 51.2 lb 23.2 kg

Coming from Outlast 17 at 52 lb

String Hepta-Twist 17 at 52.8 lb 23.9 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.

Hepta-Twist 17 mains / Outlast 17 crosses

Stiffness48th pct · 1 measured
Tension loss88th pct · 1 measured
Energy return13th pct · 1 measured
Spin potential72nd pct · 1 measured
Ball bite66th pct · 1 measured
String friction30th pct · 1 measured

Outlast 17 mains / Hepta-Twist 17 crosses

Stiffness48th pct · 1 measured
Tension loss89th pct · 1 measured
Energy return13th pct · 1 measured
Spin potential70th pct · 1 measured
Ball bite35th pct · 1 measured
String friction16th 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.

Hepta-Twist 17

~14 hours of play

Outlast 17

~13 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
MSV Hepta-Twist 17 Polyester17find18150845.70.4820.085
Solinco Outlast 17 Polyester17$9.5018350845.50.4060.074

Add a third string Hepta-Twist 17 in full Outlast 17 in full