Replace Moog Sub Phatty With Virus

[CleverConQueso]

Howdy-

I'm looking for advice on making a musically useful howling resonant filter lead and also a musically pleasant slow vintage-sounding filter sweep similar to what comes out of my Moog Sub Phatty almost without doing anything.

I'm hoping to consolidate down a bit for my live setup by replicating my favorite Sub Phatty patches onto the Virus. The Moog Sub Phatty has the notorious ladder filter which resonates so musically. I've given it a lot of thought and the way I've come to describe this to myself is that the resonant tone is thicker on the Moog. When I patch this through a delay (DL#7 on my Kaoss Pad KP# in my case.) you get these thick screaming howls that are loud and hard to ignore but musical and pleasant. Or when you LFO the filter slowly you can bring out this satisfying buzzes that pad the sound and give great depth and motion.

When I try to reproduce these on the TI by watching the very cool boot camp videos and using the 'how to program analog manual' the resulting resonance is more of a screech with a harsh high component to the tone that easily slips into a hold-your-ears/apologize/reach-for-the-mains sound rather that something you can tweak and fiddle. They suggest using the 'analog' option for the first filter then tweaking the saturation level and adding 'feedback 1' from the 'analog character' menu. Doing this and throwing the signal into a delay more serves to wash out the sound than showcase it when compared to what I'm getting out of the Moog.

I should mention that we're not looking to do a side by side replacement for the total sound, rather just trying to get at that aspect of filter behavior to give me something to fiddle with.

I downloaded a bunch of the sample Moog-style patches from the Virus site and they focus on other aspects of the Moog like modulation but not really on making the filter shimmer.

One of the (old) theories of why analogs sound nice is that the oscillators drift across the frequency a little causing the sound to appear thicker. Throw this into a delay and the wobbles are accentuated into a chorus. I imagine you could make the case that the filters used to drift a little too with the same resulting thickness. However, nowadays the devices are digitally stabilized so that have to put some f that stuff back in or simulate it elsewhere. I digress.

Any advice for making a musically pleasing, howling, screaming tweakable resonance sound?

Any advice on a similarly thick filter sweep?

Thanks,
-CCQ-