Supercrop the hell out her in veg, all your topping, do most of your bending and tie downs too. and give her the light equivalent to amount your flowering. more light in veg during supercropping the better results you will have when it comes to flowering.
Don't go past 2 weeks into flower, but do the lst not supercropping. your plant is starting her bloom and you really don't want to shock or stress her out too much at the beginning of flower. if too much healing she has to do, can slow down flower development.
The lst in the first 2 weeks will let you fine tune your tops, easy bending and positioning the tops to empty areas.
and when she starts to stretch is when you pull and tie down tops that take off, no drastic branch pinching.