Hi Dankrolledfresh, I don't have any experience with the soil you are using, but one suggestion you might try is to test the soil out in a separate germination of some garden plants/veggies in the soil first to see how the plants react or grow in the soil first.
Tomatoes, peppers, basil, eggplant, bush beans/peas or any other type of plant with similar growth, again just to test the soil and each species/variety of plant will react differently, but this can be a method to use to see if a soil is ready to use, or if it's still too hot or cooking still, and you can add or amend to the soil from there and calculate with a little more accuracy whether a type of soil medium has reached an ideal balanced kind of micro biome for growing in.
The photo of the super soil you've provided looks to be a very fine powdered blend, I would suggest finding a bag of another promix or soil blend that has more texture to it, add maybe a bit of perlite also if the bags don't contain any. It's best to provide an aerated medium that still holds moisture for your plants to grow in. I like a blend of real dirt mixed with organic matter mixed in best myself, I harvest dirt right out of the ground about a foot below the surface is where I start digging, late winter is when I harvest since most the bugs are either dead or dormant at this time of year. You can also sterilize the soil by steaming it over a stove in a large pot or canning pot.
When you're using soil (imo) it's best to use a large wide container, as long as the soil is somewhat balanced nutrient/ph/microbe wise, any (moderate) deficiencies can be overcome by allowing for extra spread for the roots to grow in, the roots will seek out to find the extra nutrients/minerals within the soil on their own if all other factors are covered.
