I run 8 5 gallon DWC buckets, Advanced Nutrients, 2 600 watt digital HPS lights and keep my environmental factors in line and I get between 30 & 40 oz. per grow depending on the strain I am running.
I have grown several strains from GHS and I reccomend you dont buy them. Almost anything is a better choice but Female Seeds puts out real decent genetics at an unbeatable price.