You always give solid advice, @archie gemmill. And your laid back attitude towards growing should be adopted by everyone. It took me a couple of grows to fully understand that and just get out of the way and let the weed grow like a weed. You are correct. Actual boots-on-the-ground growing is more of an art than a science. The science is interesting to tell us why we're seeing what we're seeing, but going out and actually doing it is truly an art form. At the end of a grow, you always say "I could have done this," or "I should have done that." This is the learning process in action. They are also the things that the master growers have already gone through and don't often think about any more. They don't mention them anymore in their journals. It takes a while to learn to read what's going on with your plants just by looking at them. I learned a very important lesson during my last grow. I had what looked like a potassium deficiency, a calcium deficiency and a magnesium toxicity all at the same time. My initial instinct was to throw more nutrients at the plant. It turns out, that my lights were too bright and my tent was too warm. It was causing my plants to drink more than I thought they were. They were burning themselves by up-taking more nutrients than they needed for their stage in their growth cycle. It took me a couple of days to figure that out. And I found out by looking at a website for beginning growers. This is something that a master grower wouldn't really think about. So...again...solid advice. Thanks.