the last week is the week the bud gets HUGE and crystally as shit. id wait as long as you can, just make sure there are no white hairs, also make sure the crystals are cloudy and not clear. premature bud isnt as good as when you wait it out, but id say its better than waiting too long and ending up with amber colored crystals.
they look gorgeous though, but definately not ready yet. do what you have to do, but id wait.