your absolutely right, most pistil`s you see is still white, them who did turn brown/orange early on is gone now, but I would still say maybe half where brown/orange or gone, if you look closer you can also see how they mature, as the lower part of the cola is mostly all brown pistils wile the top is mostly white, it kind a move its way up
I could possibly have made her go another week or cut her a week before, with not much different in weight, but the smoke would be a bit different, I like mine mature but I also notice that if I let it go to fare, I get a lot of amber instead of cloudy trichome and that just put me to sleep so I like to cut em before that, and with the strength of Skunk to day it all ready good smoke very early on (IMO) I cut as early as day 50 and as late as day 70 (strain is suppose to finish in 60 days) sure you get some weight different between day 50 and day 70 but both still make me high, and its also a matter of time/power used Vs weight gain, in them "extra" 20 day´s I could be almost half way done with the next batch, well harvest window is normally 2 weeks time, and best way to know is looking at trichomes and find out how you like em