she's looking great!! i'd say, that from now on, it's a matter of preference, when to chop her, depends on what kind of high you're after. I was trying without a microscope myself, but then i decided to buy one, and i was really able to see when the right time was. It's cheap and i think that any grower should have one! Judging by your pics, i'd give her up to 1 week more, and then i'd hang the bitch....LOL
cheers