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Head to head

Weiss Cannon Blue Rock N Power vs Wilson Natural Gut 17

They split the measurements 3–3. The widest gap is spin potential, where Blue Rock N Power is 97 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.

Measured, side by side

Weiss Cannon

Blue Rock N Power

Polyester

Wilson

Natural Gut 17

Gut · 17 ga

Stiffness lower = softer, kinder on the arm
22490th pct
810th pct
Tension loss lower = stays where you strung it
2740th pct
155th pct
Energy return higher = livelier, more free power
8953rd pct
9598th pct
Spin potential higher = more spin off the string bed
11.1100th pct
2.23rd pct
Ball bite higher = grabs the ball harder
0.65499th pct
0.38616th pct
Snapback lower = strings slide and snap back
0.0590th pct
0.17396th 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 Blue Rock N Power at 52 lb

String Natural Gut 17 at 70.0 lb 31.8 kg

Clamped. The proportional answer was 144.5 lb, outside what most frames are rated for. These two are too far apart in stiffness to match by tension alone.

Coming from Natural Gut 17 at 52 lb

String Blue Rock N Power at 30.0 lb 13.6 kg

Clamped. The proportional answer was 18.7 lb, outside what most frames are rated for.

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.

Blue Rock N Power mains / Natural Gut 17 crosses

Stiffness34th pct · 1 measured
Tension loss29th pct · 1 measured
Energy return67th pct · 1 measured
Spin potential99th pct · 1 measured
Ball bite96th pct · 1 measured
Snapback41st pct · 1 measured

Natural Gut 17 mains / Blue Rock N Power crosses

Stiffness5th pct · 1 measured
Tension loss15th pct · 1 measured
Energy return79th pct · 1 measured
Spin potential29th pct · 1 measured
Ball bite42nd pct · 1 measured
Snapback92nd 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.

Blue Rock N Power

~28 hours of play

Natural Gut 17

~38 hours of play

Both strings in full

Every published measurement
StringGaugePriceStiff lb/inLoss %Power %SpinBite COFSnap COF
Weiss Cannon Blue Rock N Power Polyester—find224278911.10.6540.059
Wilson Natural Gut 17 Gut17$67.508115952.20.3860.173

Add a third string Blue Rock N Power in full Natural Gut 17 in full