Gary, I'm more than happy with the basic Live!GrandPiano, which goes back to the PSR-3000 (and the even earlier 9000Pro and PSR-2100), I believe.

Like you, I get a lot of mileage out of it with a bit of simple editing, mainly in the Filter section. With appropriate "adjustments", that piano works well for all genres...from brightly bangin' out old Rock and Roll to softly sensuous jazz and classical ballads...and everything in between. It's a real work horse.

I tried loading in some allegedly "great" third party piano samples in my Tyros4, but I still go back to the versatile Live!GrandPiano and my simple edits.

Ian