I don't understand how I'm going to know it's time to start flushing- that it's a week or two before harvest. What's the window of time normally where your buds are 50/50 cloudy and amber... is that just a few days or a week or two? Or, do you start flushing when they are all cloudy so that a week or two later they've also gone to enough amber to harvest? See what I'm asking?
And even then, someone was saying in another post that their lower branches always ripen earlier than colas. Even if it's the other way around(colas ripening faster) what do you do, flush; harvest the ripe buds; then fert a little to help the buds still ripening along; then flush again?