I got my Mega Crop in the mail and switched that out on Tuesday afternoon. This stuff is simple as hell to use, and seems to be exactly what my plants want. I had some wild PH swing the first night after switching (5.9 - 5.0 over night) but since that it has held a rock solid 5.9, I'm guessing it was leeching out whatever was left from the AN. Compared to last week my plants look amazing, I think it's too late for them to become monsters but I'll live with it, and I'm better prepared for the next run. With that being said, 3/4 plants are showing pre-flowers and one is really starting to stretch. I expect the others are not far behind. The one that has not shown any pre-flowers is about 4 days younger than the rest so it makes sense.
Mephisto is having their US summer sale right now so I picked up Grape Walker Kush, Fugue State and Ghost Toof, along with a bunch of freebies. I'm committed to getting autos right and putting out a grow that is worthy of these great genetics.
@CRiSPrGrow, I bought all the parts my self and set it up using an open source python script that a guy on reddit made. I've made a few changes and improvements. It uses an sht31-d temp and humidity sensor and wemo smart switches to control the fan heater and humidifier. It logs temperature humidity and vapor pressure deficit and turns the switches on and off to keep it within your set thredholds. All values are sent to a grafana dashboard that graphs the values and provides averages, etc. I haven't got around to it yet but I have an arduino and a ph probe that I want go use to send ph values to the grafana dash.