By key resonance, do you mean, how the piano interacts when you lift the key?
By pedal resonance, do you mean, how the piano reacts when you depress the pedal?
If you hold a chord down and then the damper is depressed, there is no timbre change. We tried crossfading to from sans-pedal --> sus pedal samples upon sustain pedal depress, but that doesn't sound good. We'd consider doing an update eventually that adds internal pedal resonance, but our impression is that it would make very little difference.
One thing I like to do is to shut off the Sans Pedal samples... especially when I want a more cinematic sound. Then I always get more resonance, whether I have the pedal up or down
. I know this is a cheat but it's fun!