Wedding Cake, first indoor grow

Not a lot happened during week 7. Ended week 6 with nutrient watering of week 7 schedule on Saturday, 3/4 gallon per plant. Sunday and Monday were pretty lazy days with the girls. I was busy adding in a sub panel in the attic and extra outlets into the ceiling of the grow room for more lights and expanding the growing potential of the room. I pruned just a few yellowing, dead fan leaves. On Tuesday I watered, again with the week 7 schedule of nutrients and 3/4 gallon water per plant. After that, I left them alone for the next few days. On Saturday I did a flush with Sledgehammer according to the schedule. I used a full 1 gallon per plant, and I got plenty of runoff, filling the trays under the pots. I also took the time to trim all the fully dead fan leaves off the plants. I did wonder if they should be yellowing and dying, but after pruning them all off I realized that it really wasn't that many. The buds are looking pretty good. I would like them to grow at a faster rate, but I know my humidity gets pretty dry at 40% when lights are on. Maybe that's why I'm not really sure. It goes back up to 57-62% when lights are off. I've seen a pattern with the humidity levels when lights are out. Usually, if the humidity is down as far as 50% with lights off, then the dirt is fairly dry and it's time for me to water. I'm gonna keep an eye on that and see if that pattern continues. Could help give me a good clue for future grows. I have put down "defoliation" for a growing technique this week, but really I'm only taking what is dead or very yellow already. I'm trying to let them grow without too much training, I still want a base to judge my future training off of. Want to see if the training really pays off or not.