Green Crack Auto Indoor

I start LST from the start. I put a fan blowing on them soon as my seed pops. That is the first step of my LST. Then as they grow i will massage the stem between my fingers with a slight twisting motion. Looking at you photos that's where you are at. In the next week the bottom growth should take off and you can bend and tie down at that stage. This is all matter of opinion. Gl with your grow.