Oh I get it now. I had a cousin that bought a shotgun that blew up in his face but he just kept on shooting it until he could afford a new one but then when he went to go get the new one they wouldnt sell it to him cuz he had no fucking face.
Yeah dont switch to a system that will double your yield, knock 2-5 weeks off your grow and save the hassle of transplanting and disposing of a shitload of soil and cutting your hands on time in half.
You are just scared to give it a go cuz of the horror stories. I was too. It kicks ass bro. EASY!! Try it and you will love it. As to what I would yield, first I wouldnt run 12 buckets under 2 600s. I would run 8 and depending on what I ran for a strain but lets say Female Seeds...
DWC is super easy. When I switched 3 grows ago I went from averaging 2 oz. per plant in soil with a 4 week veg to averaging 4 oz. per plant in DWC with 1 week veg. Wont ever go back to soil unless pot is completely legalized and I can do 50 plants at a time.