Another thing:
Are you certain you need to feed calmag every time?
Dwc is not coco and I doubt the plant needs that much before flower. If I were you, drop the ph to 5.3, stop on the cal mag every feeding, or even better, foliar with epsom salts once a week because there is such a thing as cal mag overdose.
...and drop the FF nutes, as they are total crap. Mostly non-organic anyways...