he does like i do, use pipe cleaners to tie branches from the vertical position to far more horizontal, this causes the plant to kinda bush up more, it opens up the insides to light promoting lower growth and smaller side branches to grow up towards the light rather then stretching out searching for a non shaded spot down low which results in sparce branches with small more shake like when dried then bud like, also doing this allows the plant to take up more horizontal space rather then mostly vertical space, thus bushier plants, its almost like a scrog but instead of using a screen to train the branches under your using pipe cleaners to tie the branches down all bondage like lol. if yah look in my auto grow journal i have a few pics of my Northern Lights plant, after i FIMed it and got 6 tops schutes one of which broke when i was moving them around for a head count, i let those new tops grow out about 4 inches and then started tieing them down horizontaly, over a few weeks iv tightened them up and gotten them compleatly horizontal and all the under growth that would normaly be shaded has grown upwards creating a canopy with like 30 tops, much like a scrog just a different way of achieveing a short bushier plant with more of an even canopy rathen then a typical vertical tree with sparce lower branches. this can also help when creating a mother plant, opens more "tops" up to light and as they grow i can top them for clones and in the process gain another 2 tops on that branch only improving the output for clones and amount of tops if you ever choose to flower said mother plant.
that pretty much covers all i can think of involving tying the plant down, whether its pipe cleaners or string it doesnt matter, its just that for one pipe cleaners are softer and less likely to cut into the stems, and they are much easier to twist on and off during install, removal or tightening, to tighten them and pull that branch closer to the desired position over a period of time i make a slight crimp in the pipe cleaner kinda like a > shape and then use that little tip as a kinda wing nut and twist to shorten the pipe clean distance from branch to a wooden clothing pin on the edge of the pot, or the pipe cleaner tied to a safety pin for smart pots (or other fabric pots). (**thanks for the amazingly awesome idea there hammy, safety pins!**)
anywho again sorry for the very well medicated rant :bong: lol hope that helps yah