Head to head

Signum Pro Hyperion 16 vs Signum Pro Tornado 17 (1.23)

They split the measurements 3–3. The widest gap is string friction, where Tornado 17 (1.23) is 9 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Signum Pro

Hyperion 16

Polyester · 16 ga

Signum Pro

Tornado 17 (1.23)

Polyester · 17 ga

Stiffness lower = softer, kinder on the arm
22088th pct
21483rd pct
Tension loss lower = stays where you strung it
4169th pct
4475th pct
Energy return higher = livelier, more free power
8625th pct
8522nd pct
Spin potential higher = more spin off the string bed
4.645th pct
4.851st pct
Ball bite higher = grabs the ball harder
0.44351st pct
0.44150th pct
String friction lower = strings slide and snap back
0.09657th pct
0.09148th 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 Hyperion 16 at 52 lb

String Tornado 17 (1.23) at 51.4 lb 23.3 kg

Coming from Tornado 17 (1.23) at 52 lb

String Hyperion 16 at 53.0 lb 24.0 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.

Hyperion 16 mains / Tornado 17 (1.23) crosses

Stiffness86th pct · 1 measured
Tension loss71st pct · 1 measured
Energy return24th pct · 1 measured
Spin potential47th pct · 1 measured
Ball bite51st pct · 1 measured
String friction56th pct · 1 measured

Tornado 17 (1.23) mains / Hyperion 16 crosses

Stiffness84th pct · 1 measured
Tension loss73rd pct · 1 measured
Energy return23rd pct · 1 measured
Spin potential49th pct · 1 measured
Ball bite50th pct · 1 measured
String friction52nd 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.

Hyperion 16

~19 hours of play

Tornado 17 (1.23)

~18 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFFriction COF
Signum Pro Hyperion 16 Polyester16find22041864.60.4430.096
Signum Pro Tornado 17 (1.23) Polyester17find21444854.80.4410.091

Add a third string Hyperion 16 in full Tornado 17 (1.23) in full