Late SCROG's are possible, the trick is trying to get the screen down far enough to really get a nice even canapy going that exposes alot of bud sights. If you do, I would pull the branches threw the wholes and instead of pulling them back under the screen, I would tie them down with twisty ties so not to stress them so much. If you do it you want to hurry because right now they are still going threw the stretch and you can get allot of new growth under the screen to start forming your canapy.
Adieu