I have been growing for about 2 years in soil, and this grow is my first scrog. I have a couple of questions. How full should i let the screen get before switching to 12/12, I thought I read somewhere 50-60% but can't seem to find it now. Also, do the plants just stay under the screen or should I weave them in and out of it? I know that sounds like a stupid question, but I'm not sure which to do. I am currently growing Barneys Farm LSD under 400W MH(Veg) and using GH Flora Series Nutes, and am running my light 24/7. Any help would be appreciated.