I'd want to leave some space - I'd probably do it by swapping out the blackhole dsp2 and replacing it with a fx aid xl and I'd probably also want some more modulation sources - I'd also think long and hard about the filter - it takes up quite a bit of space in what's still a relatively small case
"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