Cali I use MsDelta soil that I dig up in our hunting woods, with about 30percent perlite added.
I grow autos inside and photos outside, been using this soil for over 50years with no problems except for a few deer an poachers, but the poachers we caught ain't coming back.
When in 2-3-5gallon SmartPots with autos inside many times I've been gone awhile ,a few days anyways and my plants were drooping-wilting , from lack of water, when I got back. Seems to me they are the plants that do the best, at harvest, you certainly don't want them to droop for several days if you can help it, but MJane loves going from wet to dry, even in living soil.
I'm not saying I'm an expert but I don't watch those videos an such, I've been growing long enough to know when they need water ,but KindSoil is good stuff if you use good water, and don't overwater, I wouldn't say it's any better than our native Delta soil though, ive grown several comparison side by side grows using our native soil and KindSoil with autos, and I don't buy KindSoil anymore, but it's damn good for new growers.
Our soil has many ,many RedWigglers in each shovelful, we dig up, never seen I live one at harvest though and didn't expect too.
But I use the hell out of worm compost and molasses teas, when they need watering.
All I ever do is water untill I feel the bottom of the pots getting damp, and stop,and I water real slowly, I don't just pour it in fast like you can do with coco.
You just don't want to water to runoff or your plants will turn yellow to early,
I use tapwater for indoor plants, and Mississippi River water for outdoor grows.
Don't have a clue what the ph of the river water is either, and we've grown some real monster size Oaxacan 10-12 foot tall beautiful Sativas over the years.
I hope maybe that helps you some Cali, another thing with the autos is leave them alone, after you've got them trained,
If I can ever help you anytime, just let me know, and I'll sure try.
HappyGrowing and GoodLuck.