I see a similar pattern developing here. As full-featured as HotSawz is, it makes sense to to add ‘modules’ to many synthesizer emulations. HotSawz being the main component of a modular system.
HotSawz likes to be first in the routing, but there’s room for experimentation before it. Something that doesn’t confuse the pitch detection too much [envelope mods, even reverb!]. Like the others here, I’ve been using another sustaining / harmonics / envelope section [freeze; distortion; compression]. Then a ‘master effects’ module to blend it all together [modulation; delay; reverb; harmonizers].
The most pleasant surprise has been using slicers, tremolo, & sequencers in the final module. Complete transformations with HarPeggiator, QuadraVox, Diatonic, … Arpeggiating powerhouse.