hello all, i'm new to the forum but not to growing. i grow scrogg style and i put my girls under the screen about a week before going to flower. i do alot of topping and lst while in vegg so the plants are trained alot before the screen is put on. as others have said 4 ft in veg is a monster for indoors. what kind of light are you flowering her under? i think your best bet would be lst. just keep tying her down as she stretches and remember a plant can reach 2-4x it's original size at the start of flowering. that is strain dependent of course. sativas tend to stretch alot in flower, at least that is my experience. whatever you decide to do, i hope it works out well. here is a pic of my current 400hps scrog 19days into 12/12. the strain is white widow and it's 3 plants vegged for 6weeks from clones
http://img2.uploadimages.net/8833463wwscrogd19.JPG
http://img2.uploadimages.net/6638292wwscrogd19.JPG