So I've been growing in my closet for quite some time. I've been only using about 160 watts of CFL lighting, and have gotten pretty good results considering the little amount of lighting I've had. I've been talking to my cousin, who used to be into growing, and he said I could borrow his 600 watt HPS/MH set. Obviously I couldn't turn that down. Unfortunately, I've been vegging my plant much longer than I wanted to. I had to wait for him to come back from a trip to Europe, luckily he came back in time, considering my plant was touching the top shelf of my closet, and had no other place to go. Problem is, even though I move the plant from the closet, to the spare room, I still have limited space. I haven't topped the plant ever, so I'm considering doing that, but I've never seen anyone do it so late in the stage. Any suggestions?