Chop them down 🤣 I'm in the same boat. Just supercrop when they get too tall...are you applying lst at all? I'd advise. My plants are approximately 2 feet tall but I keep them at 12 inches due to your problem also...height restriction. I'd wait to flip and bend them over, flip at week 6 or 7. Patience is a virtue 👊🤘👍👌 look great btw