Thanks everyone!
The one I just harvested was flipped as soon as it rooted and the other two have one and two weeks of veg respectively. The big scrogged one was cut at the same time as all the others and has ten weeks of vegging. There is another scrogged plant that was cut at the same time that is still vegging. It has three more weeks of veg and it still hasn't filled the screen. In other words, I took my two best of five cuts and started scrogging them while I flipped the extra cuts and experimented with 0, 1, and 2 weeks of veg.
I think a few things have contributed to slow growth.
1. it's a slow growing cut. I popped five beans and this one was the runt, but also the only female.
2. I had some ph problems when I switched veg feeds (too acidic,) I had been under and over feeding at various times, and a couple of times during this cycle the plants got dried out on vacation which lead to a lot of yellowing (N lockout or just plant consuming itself to stay alive?)
3. I've been purposely trying to keep the plants small through spectrum (4kK Vero), pot size, and training (scrog) because I don't have a lot of vertical height. "dialing in" my setup includes figuring how to make the plants the optimum size. Of course, now I know it's better to have big plants you can tie down than small plants that you can't "tie up."
It's not like I'm suffering without any Cannabis while I figure this stuff out...
I'm confused on pot size stuff. On the one hand, I have read that roots release hormones when they hit the sides of the pot that causes the plant to slow growth. On the other hand, in hydro people grow huge plants in little rockwool cubes. Maybe the constant flush of nutrient washes away the hormones? I don't know but before posting yesterday I did purchase some half gallon containers for four critical widow females I need to select from. They are twice as big as those food containers I'm using right now but I can still fit four of them in the veg chamber at the same time as one of the scrogs.
Also, I found that it's important to make sure the pots are packed and filled all the way to the brim, and topped off after they settle, because the roots will take over everything but the top half inch that gets dried out. The medium is a solid mass held together by the root ball except for a bit of loose perlite on the top. Also, my medium is 20% fine vermiculite by volume.
Also, heat issues are gone, turned the fan back down to low. Flowering stays mid to low 80's now. The whole cab with exhaust and cooling is much, much more quiet than the file server in the closet (which has six hard drives.) Just filling the flowering chamber with plants did the trick as Mr. Flux said it would. All that light bouncing around becomes heat if it doesn't hit a leaf.
