The switches arrived and here are the specs:

• Length: 54.5mm
• Actuation: 15g
• Reset: 9g
• Angle at...
  • Rest: 12°
  • Reset: 8°
  • Actuation: 4°
• Distance from actuation to reset: About two and a quarter millimetres (2.25mm)
  • I'm just judging by eye. It's certainly under 3mm.
• Sound from 10cm: +45dB, with the peak in the 7000Hz zone.

  • This is much quieter than my Z-88 Typewriter-style keyboard, which has blue switches.

Sound profile comparison

Below are screenshots on the sound profiles. The bluish graph moves downwards, so the most recent noise would be at the top edge of it.

KW11 switch from 10cm away

KW11 and blue-mechanical switch from 40cm away