Autopots: ILGM Granddaddy Purple Fem

I'm pretty happy with these so far. The stems aren't super woody - they remain pretty flexible. The leaves are big and healthy and rubbing the stems gets a strong odor. I noticed brown spots on low, large fan leaves on 3 of the plants. It looked like calmag deficiency to me, so I upped calmag from 4ml/gal to 5ml/gal and foliar fed with foop spray. It took about 5 days to slow then stop the spreading of spots. Things seem okay for now - no additional signs of yellowing or burning. Based on overfeeding my other grow, I'm going to back off the mix and run this one at 1,000 PPM until late flower to see what happens. Light is 100% now, so 660W.