Tono,

The MDA piano sounds quite bad in comparison to even a very basic soundfont with sfz.

I'm serious. I have both, and have had both for many years. Some of the MDA plugins are really very good (the leslie emulation and multi-band distortion are real gems), but the piano is not one of them.

You should have the sfz player from Cakewalk for any other number of sounds as well. There is a very nice small-sized orchestral soundfont called 'squidfont' which has some rather nice strings in it.

Drumkits are also widely available for soundfonts to use in sfz.

I would do a simple side-to-side playback of MDA piano versus sfz with the Warren Trachtman soundfont for you, but my music setup is half here in Michigan, and half at my new home in Colorado.