There is no need for you to train your plants like this if you have so much space left, every centimeter that is not covered by your leafs and plants is wasted space. Next time you can train individual branches after topping your plants early, try to go from the middle to all sides of your tent to maximise your coverage%. You have enough vertical space left, yes you want to go have a low canopy, but that is too low, you are also wasting vertical space. Start training them a little bit later and train the developing branches into mainstems. You can achieve that without topping, if you don't like to top your autos, but they are very capable of being topped, if done at the right time.
Nice grow!
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