Diadem Impulse 17 (1.25) vs Mantis Comfort Synthetic 16

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.

• More spin and shape

  Impulse 17 (1.25)503rd

  Comfort Synthetic 16523rd

• Easier on my arm

  Impulse 17 (1.25)91st

  Comfort Synthetic 16159th

• More control, less launch

  Impulse 17 (1.25)677th

  Comfort Synthetic 16631st

• More power and depth

  Impulse 17 (1.25)209th

  Comfort Synthetic 16261st

• Plays the same for longer

  Impulse 17 (1.25)212th

  Comfort Synthetic 16274th

• Lasts longer before it breaks

  Impulse 17 (1.25)487th

  Comfort Synthetic 16547th

• Best feel and touch

  Impulse 17 (1.25)180th

  Comfort Synthetic 16252nd

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.

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.

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.

Both strings in full

Add a third string Impulse 17 (1.25) in full Comfort Synthetic 16 in full