If Scrog'n it man, go with the HPS dude.
If you can keep control of the stretching. Thats the pain of it all. the HPS within 4 inches the tops are gettin torched. So just keep an eye on em when they are stretching. The screen will be a life saver.
Another idea is to "fix" the socket to the top. and seperate the grow from the light with a peice of hi-temp plexi-glass or tempered glass. put two CPU fans in with the light for heat exhaust and the plants won't get burnt. Just my stoned mind speakin outloud. I love micro grows.