Too be honest Keff I tried alot of variations of home cooked soil and a few runs of Revs. Not about to discourage you here, just give you some food for thought. This is how it went for me. The Revs soil definitely works but its very robust. The microbes that do all your cooking kill the myco so its only soil. Very nutritious but fungii stripped. Trying to get the myco that you add to set itself up in his soil is tough. 50% at best for me. Its meant to flower clones, not seeded plants and in small containers it still ran out of carbs. I got frustrated so I went back to what I knew worked just to be able to grow, which was Bluesky Supersoil because it grew great weed but it was $35 a bag after taxes (a bag is 10 gals) and I had to drive 60 miles to get it. So... upon switching back I figured why not try 1 of the 9 pots with Revs layers and spikes but in the Bluesky soil. It was and still is the best plant I have ever grown. It was a combo of the soil/spikes and a lucky seed pheno but next grow I went all 9 pots with Bluesky and spikes. Boom Baby! not as good as the 1 extremely good plant but still incredible! I have since dialed it back from 4 spikes to 2. 1 veg spike and 1 flower spike, each spike being 3 full tbsp. I use his high nitro bottom dust religiously as well. It works fantastic. Then I went to 6 gal pots (wife sewed me cubes out of landscape fabric to fit milk crates) and it wasnt quite as good but still sweet, just needed a few teas to finish it. Then I monkeyed around for a few grows but finally gave up on the 6gal grows. Last grow I had extra soil all mixed with EWC and didnt really want to tub it so I went with a 6 gal with the high nitro dust but I put in 4 spikes. 1 veg 3 flower. It out performed the 10gals. I now believe its his spikes and layers that are the true magic so next grow in the spring I will run 2 10 gals, 1 with 2 spikes and 1 with 4, and 2 cubes with 4. Im not trying to discourage you at all I highly endorse you giving it a try and if you journal it Im in from day 1. I just wanted you to know how it went for me so you can have a comparison.
What really impressed me about the spikes is the way the roots surround the spikes. Its unbelievable how many roots and how dense they were trying to nibble the spikes. All that being said I found that an 8 week indica uses about the same amount of food as a 10 week sativa so spikes and layers will grow anything that I have tried. It is however cheaper for me to run 10gals with 2 spikes instead of 6gals with 4 spikes as spikes get costly quick and 10gals hold my vpd better being in a desert. They hold more moisture. Your regional RH I believe you said was 45-50 and mine is 30-35 so 6gals may work for you. I also found Commercial smart pots (vivosun i believe, i will check tonight) made for milk crates and they really worked well so if you decide on 6gals I can get you some pics and details. I think they were 20 dollars for 4 so not too bad and they are extremely well made.
Again not trying to discourage you I would love to see you figure it out so I can use it too. All info for you to campare to.