Fox Fam, Jacks Classic ?

Do you thinks this combo will work? FF & jacks classic 20-20-20 for veg and jacks classic 10-30-20 for budding. How lng before I start to add the ferts If I use this combo?

soil right? get a buncha earthworm castings, and foxfarm soil ocean forest, its real rich. my personal mix is about a 2' layer of soil to every inch of castings. the different mediums seem to go nice i will post some pics here shortly if you want to see my first in motion grow.