hey if it says do a 9 week flower then i think goin a little longer will only add to the total package(weight x taste x smell)

as long as your flushing on week 8 your set. plus those flowers are lookin WAYYY bomb. id like to get some of dat lol. And since you have multiple plants id say flush and take one now so you can judge the difference yourself at the verry end with all product. a little side by side smoke session lol.