Well I should have searched...still learning here.
And for more instability to the harmonics, add saturation and resonance? The most important part being the distortion that flabberbob suggested:
[Blocked Image: http://i1240.photobucket.com/albums/gg498/flabberbob/sweepscream03.png]
I'm going to play around with this when I get back from work and post my results. But feedback would be great.
Cheers to flabberbob as well, you are truly a cool, generous person.