Finished transplanting final two plants into 3 gallon smart pots. The plants aren't showing any new signs of yellowing on the bottom leaves since moving to the flower tent. I pruned the last of them, and will keep watching out for problems. All plants are showing female pistils / pre flowers; everyone is a girl! I'm going to do a bit of LST this week to attempt to get the canopy even and will probably flip sometime next week.
Thanks Mrs. Larimar - these plants were a little more fragile with LST than my previous Gorilla Glue grow - my first few attempts all resulted in breaking branches with not much pressure applied. Luckily I managed to save all the branches except for one by immediately tying them up.
It's weird - they've been showing the yellow almost since the beginning. I posted a question on another forum wondering if it was a nitrogen deficiency, but the responses I got were that it seemed to be heat related. The yellowing calmed down for a bit but came back shortly before flipping, and I've noticed recently that most of the yellowing is happening on the side of the tent that gets less direct ventilation. As you say things look healthy up top, so I'm just riding things out for now...
Just caught the end of this grow. Seems the battles you have fought are going to be worth it. Looking forward to the harvest,. Good luck in the final stretch my freind.