No snark was intended. It's simply a reality that most SynthV AI voicebanks have had a sandpaper-like audio quality since day one, even with SVS1. Some are better than others, which makes me think it's not an engine issue, but a source recording issue. Teto, for example, is noticeably smoother in sound, as is Asterian.
And the point of posting here first was to get corroboration before I waste Dreamtonics' time. But since I'm the only person hearing it, I can assume it's not going to be an issue worth their while.