leave all leaves where they are.
I disagree with this. Last i checked, people grew this stuff for buds, not leaves. It's true that the plant will indeed need the leaves during flowering, and that they eventually start to die off anyways so leave em right?... not neccessarily. If the leaves are blocking light on the bottom to the point where its damn near dark all the time don there, then it may be a good idea to do some trimming, or to avoid cutting altogether try tucking the leaves so that they're outof the way. I'm not familair with the scrog technique, but i'd imagine that lst'ing wouldn't be out of the question either. Personally, i'm not afraid to cut leaves off as i feel neccessary. Do some experimenting with different ways and see what works best for u