Thanks so much for the feedback! I've been trawling through the forums for a while trying to collect all the tips and info you and other power users have been suggesting about building racks - I'm happy to hear that I seem to be on the right track.
I was worried that I had some functionality blindspots in the design. Hadn't looked into slope detectors before, but they seem like really useful utilities. If I understand them correctly, they'll send out gates while they detect a changing cv signal, correct? Can those be used with audio signals, as well?
Also, that microcell looks sweet, I'll definitely have to check that out.
Thanks again!