Casio CZ/ VZ/ FZ - Pro Series

hi- just picked up a VZ8M, I was curious ... and not disappointed either.
Lots of potential nastiness of course after all it is an early digital synth
but also lots of really nice warmth and some phat corky/raspy stuff, one
patch is called 'PPG sync' and its justified!- I've had CZs in the past
(which I think are great) and this box is pretty different.  I got a disk
full of patches, anyone interested? I'm posting to ask if anyone has any
resources with regard to programming it- kind of how to think through the
signal path- some coherence.  Mmm, er ... ok so you have a chain of
modulators (like DX synths) but beyond this?

-jim