Not a pre-set I would use on any of the models, as I prefer a fuller sounding acoustic piano (Steinway or Bosendorfer) however out of the 6, I preferred 3 (Korg PA900) and 5 (Tyros 4).

Acoustic pianos are very personal things, both in sound and feel, so just using 1 pre-set is not ideal.

Bill

My Favourite when it comes to sampled pianos is by Synthogy though Kurzweil run it close on the hardware front.