Well I've heard people say that hydro takes up less space and easier to do, but I don't really see how with either a big res. or a 5 gal. bucket for dwc.Unless you can do multiple plant in a wider, shorter container with dwc. I ask this because I want to do a stealth grow with a cab that is about 6.5' high and 3' wide, but I want to use either 3 or 4 shelves and get perp. harvests with scrog to maximise yield. I was planning to use a 70 or 150w hps for each shelf with maybe a few cfls for more even coverage and 3 plants on each shelf. I figure I could get around atleast 3 to 4 oz. per shelf with 3 shelfs for 9 to 12 oz. per 8 weeks with an 8 week strain. I just don't see how you could get that much with a 600w hps in this size space and hydro or dwc since you would have to use the whole cab unless you maybe divide it in two and use 2 250's. Would it really grow that much quicker with dro and yield just as much or more?