I was intrigued but dismayed to hear your Fukka FILCO Zero recording, ripster. I bought a Tactile Pro 3 and "ping" isn't a strong enough word for the horrendous ringing noise that comes out of it. All the videos of the TP3 indicated a gentle ping that sounded cute, but in reality the spring vibration almost drowns out the sound of the clicks.
All the FILCO Zero videos with no ping suggested that Matias's garish case (that is a whole generation behind in Apple's style trends) features equally awful switch mounting (and my XM Zero has a very dry sound without any spring warmth at all), but your recording suggests that the Fukka is just a badly designed switch, even if it does feel pretty decent.
I used to notice ping on my plate-mounted Cherry brown Majestouch, which was a bit annoying, but I always figured that it was to be expected when you attach 105 coil springs to a sheet of steel! I haven't noticed it recently, and I think even the spacebar has stopped squeaking, and the weird rattle in the numpad enter has gone away as fast as it appeared. I just find the switches too light, and in the complete absence of a decent tactile switch (to keep noise level down in an open plan office), I've finally ordered a Realforce …