Wow, looks fantastic (despite the burns).
I see that your medium setup is similar to what I did a few years ago but failed due to spider mites. I used a fabric batting instead of coco mats. I'm about to try again with a couple of plants, and want to ask you:
Did you stay at the 321 ratio throughout flower?
Are they in 4 inch or 6 inch cubes?
In your flood and drain, how high do you flood to? Eg., top of the cube/half way up, etc..
How long do they stay flooded before draining?
DTW or recirculating?
Anything I should watch out for? Any tips or tricks?
Srry for all the Q's. I'm excited that someone succeeded in a system I'm about to try again after failing before.