Head to head
Prince Tour XS 1.35 vs SuperString Viper V2 Rough 16L
Tour XS 1.35 leads on 3 of 6 measurements. The widest gap is ball bite, where Viper V2 Rough 16L is 68 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.
Measured, side by side
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.
-
Tour XS 1.35346th
Viper V2 Rough 16L291st
-
Tour XS 1.35396th
Viper V2 Rough 16L425th
-
Tour XS 1.35426th
Viper V2 Rough 16L395th
-
Tour XS 1.35313th
Viper V2 Rough 16L354th
-
Tour XS 1.35458th
Viper V2 Rough 16L491st
-
Tour XS 1.3511th
Viper V2 Rough 16L196th
-
Tour XS 1.35325th
Viper V2 Rough 16L375th
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 Tour XS 1.35 at 52 lb
String Viper V2 Rough 16L at 53.7 lb 24.4 kg
Coming from Viper V2 Rough 16L at 52 lb
String Tour XS 1.35 at 50.0 lb 22.7 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.
Tour XS 1.35 mains / Viper V2 Rough 16L crosses
Viper V2 Rough 16L mains / Tour XS 1.35 crosses
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.
Tour XS 1.35
~21 hours of play
Viper V2 Rough 16L
~21 hours of play
Both strings in full
| String | Gauge | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Snap COF |
|---|---|---|---|---|---|---|---|
| Prince Tour XS 1.35 Polyester | — | 196 | 37 | 90 | 5.0 | 0.359 | 0.072 |
| SuperString Viper V2 Rough 16L Polyester | 16L | 194 | 38 | 88 | 5.0 | 0.486 | 0.097 |
Add a third string Tour XS 1.35 in full Viper V2 Rough 16L in full