I had stopped growing for a year and had just started back a few months ago. I wanted to try 12/12fs to get a quick harvest, but the weight was lacking. 3oz from one and 4 from another. My tent is around the same size, but when I harvested I didn't even want to wait to cure it completely cause I needed bud, so I didn't and I regret it. My most recent PE would have been a lot more potent if I would have left it alone to cure for longer. I found enough to fill a bowl yesterday and I got so fried it was crazy, I started forgetting where I was posting in here.
I have a 400w and it works great. I'm just impatient.