You should be in flushing period now. I would recommend waiting two more weeks. I would say 3 just to be safe. Do you have a magnifier to check the trichomes without Hps lighting? The hps light will make them look amber when they are actually clear.
Its so hard!! I don't have any weed besides the ones that are still growing! Every night when the house fan is on the odor comes in the door and makes my mouth water.