If you do decide to Scrog, grow the plants to a certain height and then switch over to 12/12 and then grow the stretch the screen. Don't bother growing into the screen throughout vegetative, all you will get is the plants crushing up together because they have been allowed to grow for so long. You'll have a tangled mess that's hard to rectify and it'll be harder to remove any males. Alot of people are under the impression that you shoud use the screen through vegetative, their wrong.