So I broke my rule about freezing the setup. It took about 5 hours but I now have a better setup. Instead of the Bluebox, I'm using AUM as my mixer and I've got a place for my iPad, which is WAY easier to work with. I set up my MOTU 828 mk2 as an additional 8 analog ins over ADAT into my ES-8, which then goes into the iPad. AUM has also gotten to the point where it remembers connections when you unplug them, so I can have a template set.
A friend came a few weeks ago and said that I had the modular and the Performer backwards, so now the Performer is on a stand and the modular is on the table right in front of me. This is in fact much easier.
I think I have a USB hub with enough plugs at my practice space, so I'll be bringing that home to try AUM as a MIDI hub, which looks promising, allowing me to sell two boxes (the Bluebox and the MioXM).
In celebration, I ran Maths into Implexus, and then used ran it through a plate reverb in iOS and the Cosmos. I am manually tweaking maths as a complex LFO, switching outputs at one point, and also manually tweaking Cosmos.
It also means I didn't do any work yesterday, which is a net gain although I'm kind of f****d today. C'est la vie.