looking nice! the 16-8, 14-10, 12-12 will slightly prolong the vegetative and preflowering stage of the plant and might increase your grow until harvest with 1-2 weeks.
Yo bro, there is nothing wrong with building off the time cycle slowly in a week or so. In fact it's better in my opinion I do it almost all the time(unless a plant comes to the flower tent later) good luck ๐๐ผ๐
Lady off to a great start. Happy and healthy for sure. Well on her way in 3 weeks. Spectacular work growmie. Keep doing what it is you've been doing and may the ganja garden gods give you good fortunes until the end