What is it you are using to judge rdyiness? The rate at which thc degrades to cbn is accelerated by intensity of light and heat. Radiation in other words. It can be quite subtle but even small dli differences can build up over time. Couple extra degrees on one side of tent, possible poor air circulation, I've seen radically different looking stems on same plants under different lighting/intensities.
Think of trichomes like the shields, their main job is to protect the plant from light and excess heat. How battered they get is a matter of howich defense they had to do. Almost a separate thing entirely from plant development itself. The last weeks of flower you reduce your light intensity. Reduce your heat. Let them all fill white.
Trichomes fill with antoxidants.
Ant"Ox"idants. Oxygen. Night.
If a plant is performing photosynthesis it utilizes the plant's oxidative capacity therefore she is currently unable to use that oxidative capacity to create all the yummy stuff for trichomes like thc, terpenes and flavinoids. Although it's neither a day or night process, simply put the plant does not have the capacity to create these compounds during the day if it still has to use a majority of the entire oxidative capacity for photoprotection due to high light and high heat stress.
Lower dli, lower temps, lots of oxygen at nights, nice dose of micronutrients in last week. Sulfur (S) enhances terpene production by increasing the availability of IPP (isopentenyl diphosphate) and activating enzymes like terpene synthases (TPSs), which catalyze IPP into terpenes, directly boosting plant flavor, resin, and stress resistance. Used it week 2 flower last few grows and results have been noticed.
Plant does all the growing, we do all the facilitation of that growth. She can't produce what she doesn't have available. A plant needs oxygen and efficent cellular respiration overnight to produce antoxidants like thc efficently, Anyone still trying to optimize vpd at night is essentially crippling/greatly reducing night cellular respiration. Hence very little antoxidants are processed. We'll not the one we want in the quantities we want.
2 cents. Gluck dude.