I just switched to 12/12 and I'm very excited for the flowering stage! So far all the plants are looking healthy and bushy. I will keep the Autoflower Pineapple Express as long in the tent as possible, but the free space is getting limited :D I will wait for the first signs of flowering before the „official“ timer starts. Update: To keep it simple, I installed a trelis net for the stretching phase and will stick to tucking for the rest of the week.
Update 2: removed the scrog net, watering was a pain