Thank you!

I see the point about modulation: the more I have played, the more I miss some utilities indeed; having an envelope generator with a delay would would help, for example. So, MATHS and Veils first.
I've seen people using a VCA to reduce the signal level and connect it to a line input of a regular (non-modular) mixer or sound interface, do you know if I can do that with Veils? Not looking for a high quality sound in that case, but I'd rather not fry anything.

Regarding filters: minibrute already has one, so do I understand correctly that you'd plug Plaits into a filter? From what I see Plaits already has a low-pass filter built-in (although without direct CV input), so wouldn't that be a waste?