High Y_d_a_7,
You want to get the SCROG net a bit more up to stimulate a healthy airflow. I would say 5 inches (10 centimers) would do it. And all the buds will still reach the net so you will still keep a screen full with green.
You want to keep the lamp on full power. I mean the only reason plants start to strech is because they need more light.
Try to fill up the full screen, so also on the outsides. Train your plant that from above you can not see the floor from your tent. And be carefull that leaves are not stacked on eachtoher blocking the airflow and causing mold.
Happy Growing Buddy! 💚