Can stress in vegetative stage lead to a plant that is hermi when you decide to transfer it to 12 / 12 or is it only stress / light leaks ect... in flowering that doesi t?
People stress the shit out of their plants through super cropping and other high stress training during veg, so I dont think it really matters during that time.. You definitely dont want to stress a female in flower, thats a no no..
Just make sure your plants are healthy and producing good growth when you put into flowering and you should be fine. I stress my plants every time i clone them then even more going from an aero cloner to soil. But they come out of it and become strong again.
Personally I supercrop during the first two weeks of flower and have never had a problem, if she's a true she I don't think it will cause herms. But I wouldn't want to test my girls by stressing them purposely.