You'll find some interesting stuff in this text file :
http://www.sky.net/~kennyb/notes/vlguide.txt

I'm interested in the physical modeling not
especially to imitate real instruments, but
to create acoustic-like original sounds, as if they came from imaginary instruments
How's the VL70M for this ? (I suppose it's
more powerful than Korg stuff, where
the available parameters are quite limited)