I think @LKABudMan vegetable grow system is the same principle too.Nutri film technique.
Nutrient is dribbled onto a slightly inclined table and collected at the other end and recycled. Plants are grown in Rockwell cubes inserted into table very much like yours.
Yeah, reading through LKA's Garden Journal, he had plenty of roots, I think too many roots was the only reason the greens had to be harvested and new plants installed, too much root mass blocking the flow.That's looks like NFT. A very adaptable system; can be a little difficult to get the roots going, but once it's going the growth rate is awesome.
For some reason it seems to have lost popularity.
Golden Tiger doesn’t like many nutrients. But they’re looking good.Golden Tiger
Day 12 since flip.
The grow area is running normally.
The plants are looking good. Just doing a little adjusting on some limbs today. Trying to get them headed in the direction I want them to go when they cross the screen.
The reservoir is two weeks old today. I would usually already have changed it, but they haven't been drinking enough to make a dent in the nutes IMO, and it still smells fresh. I use a lot of aeration which helps and the AC keeping things from getting hot is critical too.
Golden Tiger, Day 12 since flip.
Golden Tiger, Day 12 since flip.
Golden Tiger, Day 12 since flip.
Golden Tiger, Day 12 since flip. With flash.
Bubbling reservoir. This wasn't from today but it looks the same.
CL
. 
I will increase with caution. I've already got some practice going from one level of recommended nutrients to the next level in bumps. Watching for a day or two between bumps. I don't mind the burnt tips, but that will be an indication to slow down or stop increases.Golden Tiger doesn’t like many nutrients. But they’re looking good.
It's starting to.
I think by this time next week it really will be taking off.
Thank you for the caution.@gwhunran, as brother @CaptainLucky says, GT is a very sensitive plant and the increases must be very gradual and very little nitrogen. She doesn't like burnt tips at all. I can tell just looking at your grow room and your husbandry that you know very much what you are doing, but this is very unlike any of the modern genetics, despite being modern itself.
I'm growing some original haze outside and it absolutely hates nitrogen, perhaps even more so than the GT.
Looking very nicely dialled in my friend.
Clogged drains and lack of root space are the main two reasons I think? There was a guy on another forum who built two massive mono tubes and that worked well. You can only run really small plants in commercial systems and they're better suited for plants with shorter veg and flower times.
There were a few things to learn with the flood and drain. After a few grows on the F&D using clay pebbles as media in the whole tray. PIA after the grow to clean up. I thought about using the pvc tray cover and using no media in the tray. Clay pebbles in the 6"net pots only. So most of the roots are lying in wet air in the tray for 1.75 hours of every 2 hours during lights on. I've done lots of grows this way now and love the results. No bugs, no disease in the flood and drain yet.
I think you’ll see some big stretching happening over the next week if my soil grows are any indication.
I know what your saying and I agree. Now I go visit the grow a couple times a day and have the opportunity to adjust them and look them over real good. Once they start stretching hard, I'll be mostly just tying them down the best I can to keep them horizontal without a lot of contemplation. Now a lot of thinking, very little action. Soon not much thinking, lots of action.Plants are looking great.
or the roots have just now grown big enough to kick off a growth spurt.
The tying down is growing exponentially as more and more limbs are showing up through the screen.
I don't think so.
The back three will get more light as there's no reflection from the front. When I place them in the tray, I try to match the opposites. 
