I am in the process of training some photos for some Scrog action too! I have decided to go with a container that measures 12" x20", and 11" deep. I am going to do 2-4 of them with 1 plant each. I was originally going to do a 3x3 plot with 60 gallon of soil, but I am still a bit paranoid about having a plant in my yard I can't move. Just being outside is a risk here, so being able to put it inside if I need makes me feel better. I am using 1 Tangie, 1 Night Terror OG, and if I do more, it will be for 2 Hem's Lock, an Affie landrace. I was also thinking about doing a gravity feed drip system, but I am not sure yet. I would just need to get the drip tips, I have everything else for it.