You left out DWC! Also wick, hand watered and probably others.
I know for a fact that DWC is a big yielding method. Have a look at White Snoops grow for example.
Latewood will also vouch for DWC.
Although for a large scale setup it sounds like drip would be less maintenance.
elcheapo Reviewed by elcheapo on . WHAT BEST NFT, FLOOD AN DRAIN OR DRIP? What do u think is the best hydro system and why? would love to hear some big yielding method's. THANK'S. CO DEE. PEACE TO ALL! Rating: 5