Thanks. Yeah, this screen grow should be an interesting one. Even without the plants in there, just by putting the tub in place, I can visualize pretty well how the training strategy will pan out. This is going to be my most controlled grow and hopefully will result in a slightly greater yield (as well as better bud that is less stressed because they'll be lower from the light).
I also figured out where I'll cut an access hole in the tub lid for the shop vac I'm going to get. The scrog style means I have to keep the lid of the tub as stationary as possible since the stalks of the plants will be entangled in the screen. That means I can't just pry the lid open wildly to access the works underneath for water changes and whatnot.
I think I have it figured out now so will press on with the grow. It's all about figuring out these little logistical details before I actually turn the system on. Because once you turn it on, there's no turning back.