Casio CZ/ VZ/ FZ - Pro Series

>I've got casiocz emulator with 8stage envelopes, with more waves than
>original, with 3-types of ring modulation and with some other nice
>features not present on casio.
>The only problem is that it's not VSTi (at least now). Now I'm working
>on iPD stuff.
>
>(take a look at http://krutek.info/pix/pm101.png)
>
>by, rebolek

Looks nice, but does it have a real filter or do the fake sine wave sync 
thing that the CZ does?