They get nute sensitive around weeks 2 and 5. I wouldn't give them the full doses of the nutes at those times. I burned mine a little in those weeks. I would have waited a little longer in veg if you want a really good yield. But, to each his own. Good luck The diamond black is great keeps things hopping in your soil. Wouldn't use much in flower though. Just make some tea. High P guano some fresh worm castings and some molasses let it bubble in a 5 gl bucket for 24 hrs then feed. They will go nuts. Then keep them from drying out. Some folks only feed teas throughout the entire grow.
These were my ladies 8 weeks from sprout 1 week into switch to 12/12. Go line and teas. Grown in a 5-7-7 room. Only used 4x4 of it for grow. 18ozs with lot's of mistakes along the way. I know scrog is good but, this ain't bad first time indoors.