Discussion about the Korg PolySix synthesizer

Ok, I'll confess...
I am trying to nail the synth part to Steve Winwood's 'Valerie" and 
would like to see how it sounds on the Polysix.  I'm currently playing 
the part on my Roland JX8P which is almost damn near perfect after a 
lot of tweaking.  The thing is, I know he played the part on a Prophet 
5, and while I'd love to have a Prophet 5 right now it's not really an 
option.  Being that the Polysix has only one oscillator, and my Roland 
has 2 DCO's, I'm able to get a much phatter sound out of the Roland, 
but is there any way to fatten the Polysix to get a strong Van halen-
like "Jump" brass?  I know the sound is achievable on a Prophet.  And 
I do know I'm talking about two totally different animals right now 
but I'm sure there's gotta be some way into tricking the Polysix to 
make such a sound, right?