I don't have a passive lpg - but I completely agree that they can replace vcas in some cases - mostly audio I would supect

still need vcas though - for modulating the modulation, non-filtered audio etc etc

"some of the best base-level info to remember can be found in Jim's sigfile" @Lugia

Utility modules are the dull polish that makes the shiny modules actually shine!!!

sound sources < sound modifiers < modulation sources < utilities