Made a change or three here, but the most drastic thing it needed was to clarify the signal flow.
ModularGrid Rack
The biggest changes were down at the right end of the upper row. I tossed the VC Mixer, then this opened up some more space, along with relocating the 333 (and turning it into a 321, since it's now a modulation nexus), and then a little graveyard dust and black cat bones, and now your audio row ends with a panning stereo mixer WITH a quad exponental VCA before it for CV level control. But also, some of the debris down on the bottom got pitched, most notably the RCD as I swapped it for a Noise Engineering Fractio Solum. That now gives you CV over clock division and multiplication. And the triple S&H went bye-bye; what you seem to have been shooting for there was probably better served with an Intellijel Steppy, but I couldn't find the 6 hp it needs. Oh, and the PWRchekr, since you've got a convenient 1 hp hole, and it's good to know the condition of your DC rails.