I always just do this in my head - picking the modules I don't own - as they are fewer and farther between...
I do round up/down to the nearest 50 for simplicities sake
I sometimes forget that others aren't so good at mental arithmetic
"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