Oh, this is fairly open, as you can sort of adjust how much thinner you'd use in a "simulation" sense, or what your performance preferences are regarding how your pen pressure manipulates the action.
• I most often end up actually painting without fluids or no higher than 15% fluidity.
• Smudge is an important adjustment, because it is responsible for how softly/aggressively colors blend. 100% is almost akin to average or even like a directional blur, while 0% is no blending, which is so harsh that it can even lead to bugs.
• Smudge (in the current version) will react to pen pressure on Opacity. This means (though maybe a little confusing) that lesser pressure increases Smudge. Thus, with pen pressure on opacity on, you might want to go to something like 15% Smudge.
• The alpha/opacity of the color can have an important influence on the paint feel, helping to suggest more thinner as you paint with it and slightly increase fluidity. It can go as far as feeling like aquarelle.
There are subtle influences as well, which include Fluid Blur, which blurs the vectors, leading to a different influence of your strokes, having the fluids spread out a bit more.
At the end, though, it's all open for your experimentation. Drying speed can have a massive influence, too, actually, as does "Curl". Try to systematically go through it and be playful. Eventually you will get a feeling for it and find your own preferences. The will vary with your mood, but eventually you will find your go-to settings, I imagine.
I can't wait to write the next version of Verve, because I have so many ideas and new experiences, which will greatly improve everything. Among them will come some proper presets a better staring points for certain styles.
As I said already, I can't wait to see what you'll create next, because you have such a mature style, such strength in it. Most exciting to me!