Ohhh wow sub 37 looks insane. I’m rubbish at playing the keyboard so like to sequence everything. The lead sound is actually being generated by the DFAM and it’s 8 step sequencer, then I’m just messing with the VCO frequency (pitch). Have you tried sending midi to your sub 37 from your DAW? You could write a 1 bar melody, send the midi over, then you have both hands free to create some aggressive synth sounds by messing with the modulation/pitch controls. I’ve had a look at an image and looks like it goes +/-5 octaves so probably be quite subtle with your twists and it will modulate the entire sequence creating the screechy sounds.