Thank you Blue! Glad to have helped and thanks for watching!
Hi Otter! Each plant is different, so I really kind of try to do the overall picture thing on each plant as an individual all through the grow, even at the end. Generally though, I am looking for (except in certain strains)
all of the pistils to have turned color and the buds to get a "chunky" look to them from the backbuilding. At the end, a few random white pistils will always be at the very top of the buds, right up to very end when they too finally pull back and change colors. If I see white pistils, I don't even really need to pull out my loupe and look at the trichomes. Speaking of which, I am looking for all cloudy with amber showing in the upper calyxes of the upper buds. The sun leaves just below that will always be amber before this very top does its thing, and I am waiting for that. At the end it is a daily inspection that tells me what is up there and I can usually spot with my naked eye when the bud has started to turn, but I verify with my loupe or my camera. My plants do not stop drinking... so that is not an indicator, at least not here. If I let a plant go to seed, at the end, when it actually dies, it does stop drinking.