Head to head

Gosen AK Pro CX 17 (1.24) vs Tourna Synthetic Gut Armor 17

AK Pro CX 17 (1.24) leads on 4 of 6 measurements. The widest gap is snapback, where AK Pro CX 17 (1.24) is 15 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Gosen

AK Pro CX 17 (1.24)

Nylon · 17 ga

Tourna

Synthetic Gut Armor 17

Nylon/Polyester · 17 ga

Stiffness lower = softer, kinder on the arm
15720th pct
15721st pct
Tension loss lower = stays where you strung it
154th pct
166th pct
Energy return higher = livelier, more free power
9493rd pct
9495th pct
Spin potential higher = more spin off the string bed
6.282nd pct
6.181st pct
Ball bite higher = grabs the ball harder
0.46262nd pct
0.49676th pct
Snapback lower = strings slide and snap back
0.07411th pct
0.08126th pct

Bars are percentile against all 788 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 AK Pro CX 17 (1.24) at 52 lb

String Synthetic Gut Armor 17 at 51.8 lb 23.5 kg

Coming from Synthetic Gut Armor 17 at 52 lb

String AK Pro CX 17 (1.24) at 52.2 lb 23.7 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.

AK Pro CX 17 (1.24) mains / Synthetic Gut Armor 17 crosses

Stiffness20th pct · 1 measured
Tension loss4th pct · 1 measured
Energy return94th pct · 1 measured
Spin potential82nd pct · 1 measured
Ball bite65th pct · 1 measured
Snapback14th pct · 1 measured

Synthetic Gut Armor 17 mains / AK Pro CX 17 (1.24) crosses

Stiffness20th pct · 1 measured
Tension loss5th pct · 1 measured
Energy return94th pct · 1 measured
Spin potential82nd pct · 1 measured
Ball bite74th pct · 1 measured
Snapback22nd 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.

AK Pro CX 17 (1.24)

~39 hours of play

Synthetic Gut Armor 17

~38 hours of play

Both strings in full

Every published measurement
StringGaugeStiff lb/inLoss %Power %SpinBite COFSnap COF
Gosen AK Pro CX 17 (1.24) Nylon1715715946.20.4620.074
Tourna Synthetic Gut Armor 17 Nylon/Polyester1715716946.10.4960.081

Add a third string AK Pro CX 17 (1.24) in full Synthetic Gut Armor 17 in full