Great!! Glad you're an S80 user now!
I like the A01 stereo grand with the low EQ increased (at about 2:00 position) relative to the high EQ straight up -- I like more bass in the piano sound.
Another piano sound to check out is JazzBallad which is somewhere in Int, but can't recall where.
Let me know if you are successful editing any of the piano sounds to get something more to your liking. I haven't had time to explore this in any depth.