Growing good.
Think for all of them stretching is over and they're just thickening up.
(Hopefully)
I'll start give her some fertilizer, maybe a pk-booster, but I never tried one before, so if anyone got some tipps let me know!
You are right in the window
Get the trichome microscope out and check trichomes.. pistils have nithing to do with rippening. Certain strain will have lots if white hair left at harvest sone strain will have hair falling off and that is just genetic. I can have have all hairs turn black in less then 24h 4 weeks into flowering . Hairs can help figurout the harvest window but all strains are unique.