Not a pro lol but I do make fluid enough HP lol. Mind you, it's never completely fluid like some of those I've seen where they look like CP from far lol
I differ my water amounts for each recipe - more water for more hard fats, and any water absorbing additives like clays, etc. and less for mostly liquid oil recipes. I use the full 3:1 if I'm trying for more complicated swirls. I've tried less than 2:1 even for a plain Castile with no additives.
I don't use all of the water up front. Usually it's about 75% and then sometimes I don't use the rest of the 25% except for small amounts for colorants like titanium dioxide, except if I see its too thick for whatever design I've planned.
Over the last two years of soaping I've changed my process to almost never leaving the soap for more than 5-7mins - that means I'm stirring constantly. As learned from
@msunnerstood, it helps distribute the heat and makes for a smoother consistency. My cooking times vary between 10-25mins after trace, depending on recipe and batch size. Sometimes there's barely enough time to scramble for colorants and weigh superfat, if I didn't prep them beforehand lol
I use a slow cooker. I add anything that can be added to the pot before/while it's cooking, so that not too much heat and water evaporates later when the cover is off and you're adding everything else. I've gotten maybe 3 volcanoes tops, maybe because I do stir constantly, but everything is melted and hot when I stir in the hot lye.
I do not think yogurt can replace sodium lactate, from personal experience, and I've actually stopped using SL. Nothing beats yogurt lol but it's not a requirement if you already have a fluid enough batter. I keep it ready but don't always use it.
Ehm.. I have a post
here on what I've learned, with great info from others as well.