I use Promix BX myself. So I'm used to feeding/watering often. I use a 1/5 strength feed, and feed most everytime. Maybe skip every 3rd watering. Been doing it like this for decades.
I also grow 1 plant per container in 15-20 Gallon Smart Pots, 2 plants per 1000w light. Also veg with 1000w. Will use more plants if of smaller Indica variety, and 10g Smart Pots.
My buddy uses FF OG and dilutes to 40%