I’ve taken a plant at 2 weeks after flip and bent her over. But in flower after 3 weeks the stems get hardened off so you have to do it in stages. But it can be done. Just pull her over a few inches a day.
I had 2 super stretchy girls that found the top of the tent during flower. Started by gently pinching and bending at the stalks every day. The woody stalks were hollow, but as long as they were crushed and not broken in half, I would tape them with duct tape into the swooping down shape to reach other areas of light in the tent. Then the started growing vertical from there. I will try to find pics. None of my colas were super tight, but those buds were just as big as the others, and even more tasty and potent.