Lots of good Information below.
I agree with the trichome harvest indicator method. waiting till they are milky white and some amber. For myself I like it less then 5%, some other like it aorund or above 10%. The more amber the more couch lock it will be. If I had to guess time left, it looks like they still need to bulk up a bit more. I am saying 3 weeks as well. If they start to amber up just chop and harvest as they will be finalized Bulking up and won't get any bigger.
Best Of Luck!
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