I used wrong term in titel - damper resonance, otherwise correct as you described.
Play short key, and let damper hold the sound.
System setting half pedalling=4 if that matters how much you get.
On 1:1:A setting damper resonance=2
- C4 and up slowly fade with damper pedal full down, but lower keys become indefinitely long.
Damper resonance 3, 4 and similar you never fade on C4 and up either.
First thing I did when I received piano was to lower damper resonance, since it was like swell at 5 if that was default. And going further up resonance towards 10 I am not sure who would use that.
Not sure if the amp envelope stuff take effect as a setting if to shorten release time - and what happends when damper is down, if that become same as when key is held?
Is there a key tracking like on synths, that you can alter how keys in different range affect length of envelopes and such?
It's no disaster as it is now, just fine tuning more and more and ran into this.
But have to keep it below 3 or notes become a mush in how they blend, does not feel natural.
And tracking for lower keys extend fade quite a bit, not sure if there is a setting for that?
On a synth I would set keytracking more similar all over keyboard to make lower respond more equal to higher keys.