just keep them under the cfls and then set them out in april or end of march this way the plants will be bigger strong and less likely to have probs outdoors as to if they were fresh seedlings just put outside
light leaks are where any part of your room is letting light in through door seals or around ducting make sure your plants are in complete darkness..dont want hermies!!!!lol
if you go ahead and switch your lighting cycle from veg to 12/12 within about 5-7 days you will be able to sex them and you could flower them if you want or you could put them back into veg to fatten her up...rule of thumb to start flowering is about 12-18 inches hope this helps bro