I am planning on doing a grow in a few months, and am limited to 10 x 10 due to medical marijuana statutes. I have researched a variety of methods, including scrog, sog, vertical growing, lst/topping/fimming. I think I want to do a soil run at first as this will be my first indoor grow, although I know hydro is more efficient. What I want is the highest yield and efficiency. I have heard figures ranging from 1 ounce/ sq foot for scrog (16 oz per 1k watt HPS in 4x4?), though this seems a bit low to me. I also understand it is quite possible to get 2.5 to 3 lbs off of 1200 watts in an ecosystem. I'm thinking I'll start off with 4x1000 watt HPS depending on the grow method I decide on. I can't really afford for the first grow to go poorly, as I have to pay the bills, and electricity with the great CA tiering system should run approximately 1500 per month. What I'm really looking for are some "firm" numbers on yield per area and wattage. I really appreciate any input.