Yeah, was thinking the same on overfert, pp. I've been doing a very religious FoxFarms Hydro 50% mix on these plants at every feeding. Was 6 days, then 4, now 3. Watered them on Tuesday with pH adjusted water only (no food, that's a first). Seems like the browning is getting better. Here's a shot today:
Attachment 290836

Shovel... I'm not sure if I did a bad thing with the FIM or not. "It seemed like a good idea at the time." I may have cut too high. This is 5 days after:
Attachment 290837

Plants really do seem pretty healthy and I'm mostly leaving them alone. Check the soil daily and take pictures, water/feed as needed and hope I'm doing the right thing. Plants are about a foot tall now, but real bushy. I really want to get these plants to the 18-24 inch range before flowering. Shouldn't take too many weeks the way things are going.

"It's all fun, it's all an experiment, and it's all smokable."