first of all. i am not a piano player.
now the question: why is it that when you play some of the high notes in a real piano, when you release the key, the strings keep on vibrating??
and most of you have to be aware that this behavior is copied in sampled pianos. why is that??
perhaps it would be more useful to play the high keys and mute the sample when you lift the finger, as you can control the key easier. whether it is a mechanical or acoustical problem, i think control could be improved if sampled pianos muted the sound after the finger was lifted.
of course you can always reprogram, but i wonder what are your opinions on this one.