Yep, its why we test and talk about it.
If folks are having problem, it could be a few minor adjustments to get things dialed in. Just to let you know,
@Kindsoil, I will be starting my own personal run with your soil today and will be using everything you suggest on the instructions, along with the Earthjuice crystals, minus the Root trapper pots. I'll be using 2-2gal smartpots on this grow. Couldn't get them here in my area and shipping to me was twice the cost of the pots!