Aztech Genetics auto Cheese Scrog

These are photos taken a day apart before and after a trim up and tidy. The screen Only went in 3-4 days ago and I have manged to get some training in but I can see she's starting to chuck out her first few pistils now. I think I will change to flower nutes on the next feed/water and stop all training by the end of this week or earlier depending on how fast she advances into flowering. Although I want to fill the screen as much as possible I want to make sure I don't miss out on too much of the stretch period happening above the screen.