You're really lacking on ways to manipulate CV/mod signals here, so for 10 hp, I'd suggest a Tiptop MISO.
-- Lugia

Hi Lugia,
Can you explain a bit more ? I am totally a newbie in eurorack. it would be grateful if you can give me instances of the patch ideas.
I usually experiment CV signals with Maths and quad VCA (fed in with some LFOs)...well, perhaps I misunderstood something.