the big advantage that Maths has over other DUSG style modules is that someone took the trouble to create the Maths Illustrated Manual (google) - it has 32 patch suggestions in it - working your way through it with is a good grounding in modular sytnhesis
I think it's funny that people complain about Maths being indecipherable and then go and buy fallistri or rampage, both of which to me look 10 times more complicated and way less ergonomic than maths
veils will work fine for amplifying your external drum machine to modular levels!
"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