How much longer does she have? When should I flush? Do you turn lights off for last day?

think the triches are confusing you... they devleop in waves.. so the ones that are out now will mature before harvest. New bract-pistil-stigma develop on top of the ones before it. or squished next to it etc.. e.g. my recent harvest looked ~ripe about day 56, then stacked on an whole extra layer i had to wait to ripen. (in this case i didn't but normally i would have -- this whole thing about ovules, lol...) Anyway, you have fquite a while left, unless it really develops fast at the end. The bracts will plump up, the stigma will retract or coil a bit etc... signs you are closer to end. do keep looking at triches.. see how it progresses, how long it takes from glass to cloudy etc .. good familiarity to gain. In the one picture, if oyu only showed that as a test, i bet people would tell you it's ready, but when you look at the plant, it is not close enough for a flush, methinks. plus, you are hydroponics grower, so you only need a 24-48 hour flush. maybe a slow weaning is better? have to get some hydro grower's tips on that.