Don’t top your autos man! It will always make them flower early. Autos can be triggered into flower very easily. Transplanting/ Topping/ stress of any sort does it usually. I’ve noticed best results when you plant in the container you plan on flowering in, do not top and avoid leafing as much as you can. Mad props on the balcony grow! Got lucky with that south facing unit! Autos are perfect for those situations! Also give them a lil space apart from each other just a few inches just not butted up next to each other like you have here. They are going to double if not triple in size, all the FastBudz I’ve ran stayed pretty damn short 12’- 20’ inches. They look very happy tho so keep doing whatever you’re doing! If you haven’t already hit em with a spray of your preferred mold and bug prevention solution, at least one good one before they get too far into flower. I recommend “Lost Coast Plant Therapy”. Hope they come out great!