About the harvest time and will the fatten up a bit more?

It all depends on how you like your weed. Do you prefer it that gives you energy to move during the day? Or do you prefer the couchlock effect? In any case, if you want to harvest it, you'll have to cause a scenescence to drop the chlorophyll level present in the buds. It will be much better. There are several techniques. If you harvest it late, watering with clear water and a little defoliation will do the trick. If you want to harvest it quickly, a lot of defoliation is necessary, to force the plant to draw chlorophyll from the buds rather than the leaves. While spacing out watering as much as possible to give it little water stress. Some people leave their plant in complete darkness for a minimum of 2 weeks, but you have to be careful of mold. I invite you to watch youtube videos on the subject, some guys explain it perfectly well by adding images. Happy harvest to you friend 😉✌️

Ingen grund til bekymring de kommer men er nok ikke så store pt da som du selv siger det er mest Sativa. Held og lykke med grow til dig growmie 😉 looking good real good have a good big Smoke 👌✌️💚💚💚👌💪🎃🎃✌️💚😉👍🏼🤯🤯

I would give it more time. Much of how it performs is based on genetics. Flushing is a tool for correcting a catastrophic issue in the substrate. If that's not an issue its not going to fix anything. Plants don't piss out excess, or leach it away with more water. All it is doing is starving them and sowing growth. can't make something out of nothing. Giving just water with no runoff is fine last week of life. Let is use up what it has in the pot. To run copious amounts of water though the pot though, wasteful and useless. Even end of life stressors to increase trichomes and stuff take time and energy, Something it does not have a lot of in the last few weeks. Just let it be, if it hits, good, if not find a new strain. Good Luck!

yes i think about 3 weeks to go :) also buds will increase in size when you flush with plain water 🌱💚