I’ve got a MMV Signature #144 (in case this was fixed in later ones).
I find that the modulation busses don’t ‘kick in’ until you’ve turned the amount to ‘2’ (or about 20 on the screen parameter). The difference between 0 and 20 is negligable, but then all of a sudden it starts working really stongly.
Has anyone else noticed this? If you want to have a really subtile vibrato for example, it’s really hard to get going with just the mod bus as is.