I think the most simple but high rewarding system I have seen on this forum is in the thread of KLX.
https://www.rollitup.org/t/the-klx-way.960314/
Of couse also here you still need a pump and a timer, but that's about it concerning technics.
He does it with a SOG, but it can also be used with less plants per square feet.
That’s a cool method, I have checked that thread out before.
The stadium style flooded tube grow was amazing, but yeah that’s a scary plant count for my area. I like to keep it below 25 among all stages. I think I may even go down to two plants per meter and veg longer. DWC might be a real good solution for me, rafts or not.
I really like aeroponics, but the plants aren’t portable once they have some size on them, which is a buzzkill for me. I should probably just bite the bullet and buy a bunch of netpots and deal with recycling some hydroton and breaking some plastic.
I honestly don’t think DO will be a problem with the raft method. Using big airstones in each bucket and an air pump designed for a 60-100 gallon aquaria I am pretty sure I can aerate <=20 gallons of water adequately, even at warmer temperatures. I keep my fish happy, and I think they have higher DO requirements than roots.
I guess the raft method speaks to my iconoclastic streak. I like bucking the status quo, I was born this way. I also have a hunch that it will kick a lot of ass if I can get it dialed in. I am firmly on the fence now, and I have about a week before I need to move the clones to their next stage. I must cogitate further.