Tell her to put on the boxing gloves. I'd say one more week and the calyxes will swell more, and you chop. But this is only from looking at it. If you have a scope/loupe that would be the best way to tell.
thanks for the answer, this is only my first succesful grow so far so I appreciate your input. Sorry for the crappy cell phone pic, dont have a camera.
The lower nugs will be less mature than from the top of the canopy, so it won't exactly be a true sample of what you've created. As far as effecting your plant, you shouldn't see any effects from taking the sample.
No i just tried to peep it with a magnifying glass but i dont think it was powerful enough to really tell. from what i could see i'm still working with either clear or milky trichs(and I'm thinking clear though :/ ??).. idk..