Thanks! I got a little over 1 ounce per square foot so it's not the end of the world, I just kinda expected to do better than .6 grams per watt and it wasn't really until the ripening stage that I knew it wasn't going to be great.
The new room will be a scrog. It's only 5.5 feet tall and I'm losing about a foot of that headroom to my fan and carbon filter. I haven't decided how I'm going to do it yet. I want something that's removable and doesn't take up too much space. Right now I'm thinking about a steel frame, I'm just not sure how I would support it at the door opening.
I'm reusing my HLG 300 light and I've added two more similar rspec DIY lights. I was going to reconfigure my strips to use in there as well so I had 900W, but after firing up 720watts to full blast I don't think it will be necessary