Nahh, I'm no where near 3g per watt. I usually figure it by footprint. What is being grown under the light is usually the deciding factor, as everything is always consistent environment/levels. I run HPS and CMH lighting, depending on which building I'm in. I don't think I showed the CMH building on this forum but you likely seen it on my website. I run all my lights at 1100 watts and replace the HPS bulbs every 3rd cycle and CMHs every 6th. So each light is applied to a 16sqft canopy, consisting of 16 plants. Monster Zkittles is one of my best yielders at around 1,700 grams per light, where as Candyland is one of my worst yielders at around 1,200 grams per light. Then on the other hand Monster Zkittles can never break the 30% THC threshold, where as Candyland has tested as high as 36% THC before. As far as issues go, I have no issues, everything is automated and runs perfectly. I just have to keep the dosing pump reservoirs filled up, for the 500 gallon table reservoirs and flush the spin down filters out every week or so. Most of my time in the gardens is spent stripping leaves. I appreciate the confidence in me, thinking I could achieve 3g per watt, but I'm not sure that is possible. I will keep pheno hunting for that super yielder though, you never know, I don't want to let you down