Try to get your pH down to 5.6 and get a full swing(up to 7.1-7.3)
I know and its tough. I did the same thin when I started Advanced Nutrients, and My plants went into the herb equivalent of a diabetic coma. I tried it with DynaGrow, and same thing.
For sure cut out the calmag for now. if you see spots forming on the leaves, I was wrong and you need to give them some. The watering I agree with too.
Try watering between feedings. I have never used cocoa so I'm not exceptionally versed, but the other info is pretty across the board.