I'm sure a lot of you will ask why I let the plants get so lanky- especially the skunk and tox lemon- I find it easier to train a plant that is forced to have slightly longer internodes while it is very young. They get pinched and then start out under a 250MH that is almost 2 feet from the canopy, and stretch for a couple weeks. Then I try to spread or bend them back down to ~2/3 the height to which they had stretched. Once I have a general framework for how the main stems are going to be arranged, then I want to see tighter growth, so I put them under a 400MH.