Stereo channel 1 of SSF Vortices is the IRv4 with added Sine wave going through the DannySound Timbre and then into Mimeophon.
Stereo channel 2 of SSF Vortices is the IRv4 Drum-Output going into a bit of delay from the Erica PICO DSP.
Stereo channel 3 of SSF Vortices is the IRv4 with a nice wash of Monsoon Clouds Reverb.
DivKid / Istruo Ochd and 2hp RND are doing all the CV control of IRv4 along with swiping the Color control on Mimeophon.
Enjoy your spare HP, don't rush to fill every last space, this is not like filling sticker books. Resist the urge to 'complete' your rack, its never complete so just relax.