Hello mate, looking your plants in the diary you are near to harvest i think 3 week are too much. Check after 1 week and you'll see more amber trichomes, meaby after two weeks you have the goal.
Good luck and happy harvest!
By the looks of the trichomes, they are looking just about done. You could let them go for a few more days if you think they need it.looks like your in week 8. That seems to be the average for me