What's the problem growdawg? I didn't read the whole thread just the last 3 pages. So
You got yellow dying leaves at the bottom of the plant? That's all I could see from the pics. If your feeding was to strong and it was a nute burn you would see it more in the tips then work it's way back not just at the bottom of the plant. If your new growth is green but older lower growth is dying it's a nitrogen def most likely. You can be feeding
Nitrogen and still show def if the nitrogen is being locked out due to Ph issues and or overwatering. Do you know the Ph of your runoff growdawg? Sorry if im asking question that were already asked just figured ide jump in and try to help you but couldn't read the whole thread at this time. With what I seen so far that's what I would suspect. You got air circulation down there too correct?