hey andy, here is sideways shot of my ww that i believe is 6 weeks into flowering she still has atleast 4 weeks maybe longer im thinking?, BUT shes doing well.. i couldnt tell you when to flush honestly as im reaching near the end of my first grow. i have heard to use a magnify glass with a light and look at trichomes (look for amber colored trichs) or if majority of the hairs are red and receeding back into the bud thats another way to know ... people may disagree with these methods... hope that helps some
ch33b