Yeah, I know you know what you're doing!
I hope I didn't come off condescending. Just a heads up since you've been jumping styles and lines a bit. Easy to get tripped up on something basic. The AN stuff caught me by surprise on strength. Oh! Shake it up too. It settles out quite a bit.
I would still check pH at least a couple times to see if its where you want for coco. Mine pulled right to 6.0 every time but, depending on your medium and your water and where you want it, I would definitely confim. I guess if I was wanting right at 6 then it definitely lives up to its name. I was quite impressed but also surprised. I used the soil line so I don't know how the coco specific stuff runs. Good luck and I'm definitely following.