Wedding Cake mainline (Norcal Farms)

I had been feeding with a diluted solution and now after flushing with water last week I'm moving up to full strength. The pistils of the plants on the ends seem healthier. The smaller plants in the middle seem a little more scraggly. I'm making full use of the SCROG net. I also raised the light an inch or so and put it back to 100% from 75%. I'm going to see if I can keep it closer to 100 if I can balance the intake air temp. Some of the leaves are damaged. I have a feeling it's from the cold nighttime air coming in the intake. I'm going to keep the intake fan off at night while it's this cold and damp outside. Hopefully not too much smell escapes. Maybe I should seal it at night. Getting sticky now!