I found the Epic Grand from ksounds.com to work well for live gigs. I did set up some patches to use the monaural piano samples, since often times I can't count on the P.A. being stereo for the stereo piano samples, which sound terrible when summed to mono. I also tweaked the velocity curves and switching ranges to work better on my MOXF, which has a lighter action and needs a gentler curve than a weighted action to make the dynamic transitions smoother.