Head to head
Babolat M7 16 (1.30) vs Gamma Synthtic Gut 15L W/wearguard (1.38)
M7 16 (1.30) leads on 3 of 6 measurements. The widest gap is stiffness, where M7 16 (1.30) is 9 percentile points ahead. Every figure is a testing-machine result at a fixed reference tension.
Measured, side by side
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.
-
M7 16 (1.30)350th
Synthtic Gut 15L W/wearguard (1.38)353rd
-
M7 16 (1.30)158th
Synthtic Gut 15L W/wearguard (1.38)205th
-
M7 16 (1.30)603rd
Synthtic Gut 15L W/wearguard (1.38)553rd
-
M7 16 (1.30)121st
Synthtic Gut 15L W/wearguard (1.38)175th
-
M7 16 (1.30)98th
Synthtic Gut 15L W/wearguard (1.38)63rd
-
M7 16 (1.30)453rd
Synthtic Gut 15L W/wearguard (1.38)488th
-
M7 16 (1.30)115th
Synthtic Gut 15L W/wearguard (1.38)168th
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 M7 16 (1.30) at 52 lb
String Synthtic Gut 15L W/wearguard (1.38) at 49.9 lb 22.6 kg
Coming from Synthtic Gut 15L W/wearguard (1.38) at 52 lb
String M7 16 (1.30) at 54.2 lb 24.6 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.
M7 16 (1.30) mains / Synthtic Gut 15L W/wearguard (1.38) crosses
Synthtic Gut 15L W/wearguard (1.38) mains / M7 16 (1.30) 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.
M7 16 (1.30)
~36 hours of play
Synthtic Gut 15L W/wearguard (1.38)
~38 hours of play
Both strings in full
| String | Gauge | Price | Stiff lb/in | Loss % | Power % | Spin | Bite COF | Friction COF |
|---|---|---|---|---|---|---|---|---|
| Babolat M7 16 (1.30) Nylon | 16 | find | 161 | 19 | 93 | 4.7 | 0.472 | 0.100 |
| Gamma Synthtic Gut 15L W/wearguard (1.38) Nylon | 15L | find | 167 | 17 | 93 | 4.7 | 0.468 | 0.099 |
Add a third string M7 16 (1.30) in full Synthtic Gut 15L W/wearguard (1.38) in full