How long have they been flowering? Based on the pistils alone I'd say you're not close yet. We'd need a closeup of the trics to know for sure.
Too see trics buy a macro camera or jewelers loop. Sent from my SM-G973U using Grasscity Forum mobile app
<-- 10 weeks in flower. The days will shorten enough about Aug 1st to trigger and they'll show sex mid Aug and be ready to harvest Mid to late Oct. BNW
Pretty much all white pistils. More times than not, it means continue to grow. Those pistils need to change to brown/redish. Whatever the seed breeder states for the grow time frame, add two weeks.