I have had great success of going from seed to weed in 55 days flat. Avg of 1 to 1.5 iz per plant in 2gal of soil. Although I used liquid nutes last time. And they can flower while my other plants veg under the same light cycle.
the idea behind using the super soil is to not use teas or the like. the best thing you can do is it give it a try. adjust to more or less super soil for future runs if you run into problems. - since most autos can run their life cycle in 55-65 days i would think 1/2 to 2/3 super soil would be...
several gallons of hydrocloric acid (available at swimming pool supply stores) and a large rubber maid container, will dissolve the plant back to its simple compounds.
To re use the soil you would want to re condition it with everything because the plants used everything. The microbial life should still be there and feeding them would allow them to flourish, of course addition micro's wouldn't hurt I guess.
I've read it makes great lawn fertilizer or even...