Usually to find out if the product is done we examine the tricombs not the hairs. If 50% of the trich's are clear and 50% are cloudy then it's about time to cut down. Unless you know the strain to be a short flower period strain id let it go till week 8 or nine. You will increase density and smell/flavor. Just make sure to cure it properly. Nice work keep it up!
I know this, not my first barbeque, been doimg this since 1997 lol. I have a 50-100x magnifying lenses I check trichs with when I first grow a strain, or new phenotype of a beloved strain. Once you've grown it once, there is really no need, if you actually paid close attention, and kept logs, to have to go thru all that with subsequent grows. I know from past grows with this strain that before the pistils even change one fraction, 50% of trichs are already milky, at 50% pistil change, 100% have gone milky, and about 10% have ambered. Around 70% pistil change, gives you about 40-60. 40% white, 60% ambered. Roughly. So like I said, no need to waste time checking trichs with microscopes or lenses, as I keep very detailed grow logs, daily pics, trich pics as they relate to pistil change etc, of every single plant, I have ever grown, in the last 20 years, literally. :) also, it was an indica, they run 6-8 week flowers, and Sativa's usually run 10 weeks. I harvest at precise times, for my liking. I grow some smoke for the head high, others for the couch lock. Having all couchlock weed, in my opinion, is a waste, and pointless when you work 16+ hour days. Can't be sleepy and retarded, basically useless, u less you like the welfare line. So I grow half at white trichs, the rest at 60/40. Works for me, and I always have nice yields for the time grown, size container used etc. I smoke about 2 oz of dank ass kill a week, and I havent bought weed for 16 years....... And won't ever again, as I have no need.