Set me straight man [or anyone knowledgeable is free to answer]:
I gather the purpose of a scrog is "even canopy" and I've seen people use these technique many different ways.
In your SCROG are you bending the branches of the plant under the screen
OR
Are you setting the screen up and just...
Are your roots suspended in air or do they actually "sit" in the PVC tubing?
If its the latter then why do you need the rubbermaid bins to begin with?
You can just make rails or pvc tubbing thats supported by a saw-horse type structure, line the your post with the plants every 12" or so...