Estimated time to chop, I am guessing 4 weeks but I have no idea really

I think 4 weeks is a bit over. I’d say keep an eye on the purple one around 2 weeks from now, that one probably will go another 2-3 then the other one looks to need a bit more time probably 2.5-4 weeks

Hello my friend, yes you are right and you can harvest around 4 weeks from now. When 80% from the white hairs are brown it is time for harvest! Happy harvest buddy!

Re-visit the thought in another 21 days. Inspect the rezin glands to estimate. Also take stock of the pistil development. If your whole bud is still full of white fluffy pistils then you aren't ready to think about a chop. Usually the first signs of pistil dieback do to approaching maturity will be seen first on lower bud sites on the bottom 3rd of the plant. Once you start to notice that, you are about 3 weeks away from harvest. Soon you'll start seeing some pistil dieback on your top kolas. You'll likely see continuous calyx and pistil development even though the plants are maturing and near harvest. Don't pay attention to that. The tricome colour and clarity is what you want to go by when you are near the end. And make sure you flush your plats 2 weeks before harvest. Take them into the bathtub if possible and flush out the soil with a few gallons of pH to 6.2 tap water. Lots of runoff out the bottom. Make sure to use room temp water and not cold. Then allow soil to dry out, then water with just 6.2 pH tap water till you are ready to chop. You wanna see your fan leaves yellowing and the green chlorophyl leaching out of the leaf tissue. Nitrogen left in your plant will make your smoke taste like chemicals. It won't stay lit and it'll produce black ash, Very undesirable qualities. If you have higher levels of potassium and low nitrogen you will have a smooth smoke with a white ash. I don't take a dump on the toilet and dream up this stuff. I spend a fuck ton of time watching Harley Smith Lectures and seminars on Cannabis cultivation. I like to get really baked and just geek right out on his content. He talks about Brix and Krebs cycle in plants. It's fascinating. And the weed takes the stress of feeling like you can't comprehend wtf he's talking about and allows me to be hyper focused on what he's saying and i don't get distracted by my inner voice or thoughts. He's a brilliant botanist. I recommend everyone raise an ear to that man.

Nice looking pics. prob 3 weeks out. Keep and eye on the trichomes and use that as an indactor of when to harvest. mostly cloudy. little to no clear and some amber seems to be the sweet spot. Can also judge it based on pistils when about 80% of them are dried up. One pic had a lot of pistil tips dried out, hopefully it was just mishandled and nothing serious, I read that when just the tips dryout its a sign of pollination. I am probably wrong but keep an eye on it. They can be damaged from legit anything and dry out from that as well. Good Luck!

Thanks for following my previous advice and fixing the white balance, it's much better now (although a bit hot & pinkish, try 4600K). ^^ About your plants, I'd say more like 2 or 3 weeks. But with a little boost of PK, especially potassium, to make the buds explode. And don't slow down the Micro of your tri-part (cf: https://www.terraaquatica.com/wp-content/uploads/2023/05/TableauApplication-2023.pdf)

Don't guess....buy either a jewelers lope or a digital microscope. They're cheap and then you can judge the ripeness yourself.