The reason a triple 17 is out for me is nitrogen. I cannot half that nitrogen without halfing the P and K. I want the N in the veg-I dont want a lot in flowering. By buying that Nutrient, I have made myself buy another one for flowering and another for NPK foliar other than Sea Tea.
By useing organics in the soil, I can focus on treating with the correct combo of N-P-K. For me the key was being able to divide the dose of the nutes to get the desired levels.