Well said. I love knowing that no one else has my same soil growing and that it's my own. Whether that is for better or worse, who knows. Eventually I will get around to playing with specific variables in some mixes, but every result will be just speculation on my part. The endless paths of things that may or may not impact things has me hooked.
I recently expanded some em1 that I had bought a couple years ago and had hardly used up til now. I then made some homemade bokashi out of it. I sprinkled some on top of some soil I have sitting in totes and it grew some strong mycellium pretty quick. Added some to the worm bins as well and they loved it too. I also used some of the expanded em1 (used some kelp and alfalfa as feed along with the molasses, so maybe that is doing something? who knows though) as a feed when I flipped to flower. My plants seem happy and seemed to respond positively to the use of the em1, but really can't say it enhanced anything. I guess my point being is how I like what
@MICHI-CAN said. If you feel the urge, try it out. As long as you aren't overdoing any one thing, you will probably be ok.
Also, I liked the newer mix you posted this time. I used something very similar to that for my last batch I made up, but had a few extra things like alfalfa and frass along with others. I think following the more so coots style will give you solid results and allow you to find more so specific information for what you have going since a lot of people started out with similar things. In my opinion, as long as you have a few basic things covered, quality compost/aeration/liming agent in soil, the options are endless beyond that.
I say all this with only having like 5 grows under my belt, so take it all with a grain of salt. Sorry for rambling on as well, just really enjoy talking about soils and get tired of the wild looks I get when it comes up in personal conversations hah.