Head to head

Gamma Asterisk 16 vs Prince Synthetic Gut 18 Duraflex

They split the measurements 3–3. The widest gap is ball bite, where Asterisk 16 is 26 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Gamma

Asterisk 16

Nylon · 16 ga

Prince

Synthetic Gut 18 Duraflex

Nylon · 18 ga

Stiffness lower = softer, kinder on the arm
15720th pct
16228th pct
Tension loss lower = stays where you strung it
2122nd pct
1916th pct
Energy return higher = livelier, more free power
9165th pct
9272nd pct
Spin potential higher = more spin off the string bed
3.824th pct
3.621st pct
Ball bite higher = grabs the ball harder
0.41836th pct
0.37410th pct
String friction lower = strings slide and snap back
0.11076th pct
0.10468th 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 Asterisk 16 at 52 lb

String Synthetic Gut 18 Duraflex at 49.2 lb 22.3 kg

Coming from Synthetic Gut 18 Duraflex at 52 lb

String Asterisk 16 at 54.8 lb 24.9 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.

Asterisk 16 mains / Synthetic Gut 18 Duraflex crosses

Stiffness23rd pct · 1 measured
Tension loss20th pct · 1 measured
Energy return67th pct · 1 measured
Spin potential24th pct · 1 measured
Ball bite30th pct · 1 measured
String friction74th pct · 1 measured

Synthetic Gut 18 Duraflex mains / Asterisk 16 crosses

Stiffness25th pct · 1 measured
Tension loss18th pct · 1 measured
Energy return68th pct · 1 measured
Spin potential22nd pct · 1 measured
Ball bite13th pct · 1 measured
String friction70th 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.

Asterisk 16

~33 hours of play

Synthetic Gut 18 Duraflex

~35 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Gamma Asterisk 16 Nylon16find15721913.80.4180.110
Prince Synthetic Gut 18 Duraflex Nylon18find16219923.60.3740.104

Add a third string Asterisk 16 in full Synthetic Gut 18 Duraflex in full