Originally posted by Jazz+:
Musically, idealy where would you like the high notes without dampers to begin?
Nowhere. On acoustic pianos, this characteristic is more linked to lower cost and mechanism reduction than anything else, as those notes die very quickly anyway.
My Kurzweil also emulates this imperfection from G6 to C8 (18 notes), but I always use dampers on all 88 keys when I create custom acoustic piano patches. IMHO an ideal piano has 88 dampers.