I coming over for my first visit next year. In the Fall (your fall). Greatly looking forward to it.
I am not familiar with adding sugars or anything except I hear a lot of caution that sweet can draw bugs, so keep that in mind. as far as the microryza it would depend on the brand and their directions on how you use it. I would see what they recommend. I don’t really use anything except nutrients and soil and I have pretty good luck.
Here is my grow if you want to get some ideas