Luna91answered grow question 4 years ago I would Flush, depends if your growing soil or coco, if soil 10 days before harvest, and coco 5 days would do, if you want higher THC start to do so! Your stigmas are already amber and curving in, you’d need a magnifier to see if all Trichomes are cloudy or not but in 5 days they will be.
Not Flushing will give you low quality taste, headache or fussy feeling .
Good Luck!