Casio CZ/ VZ/ FZ - Pro Series

hi i am trying to program leads like the ones used by "Justice" the  
best adjective i can come up with is plasticy however i haven't had  
much success, does anyone have any idea which waveforms i should use  
and how i could get this effect (possilby a gliding fast waveform or  
pitch envelope)

any ideas would be really appreciated thanks