If the plants arent TOO far along in flower, you could take clones and put them back into veg lighting after they root to utilize a scrog. I plan on doing the same exact thing when I determine the sex of my babies. Doing individual screens is something I also thought about, but for me it wouldnt work because I need to train plants before I start flowering in the 7x7" pots. Once I change to flower and determine sex, the definite females will be going into 13x13" pots and be allowed to start coming up through the net. Also, doing individual screens for each pot sounds much more tedious than one big screen. Thats just my opinion.
Im gonna do a perpetual scrog though since I have a separate cabinet I can use for vegging clones and small plants. The clones will be about 5-6" tall when I snip them, which will be perfect in my humidity dome. This works a little better for me since money is still an issue with the lighting system $400 is a big chunk of change for me right now. Since I am certain they will be females, Ill allow them to grow to 12-15" and put them in the grow tent and begin training immediately.
I returned from doing all of my errands today, pictures will be up when I complete building the platforms in a few hours. My drill is only a 7.2v so I might only get a couple of them done.