i work with metal, and i need to use a spy glass magnifier , im getting a x25 soon.....Get a pocket microscope at least 30x. Go by the trichomes. Mostly milky white to 50% amber is when you should start your 2 week flush.
the 6-7 weeks photo ....well shes like that on ALL the smaller bud sites, the 4 main big bud sites up top are starting to catch up, im thinking shes ready, its just those bigger heavier top buds, not sure what to do ?wait the 7 weeks, you are getting really close... pic 2 and 3 are looking pretty damn good. here is a pretty good little chart, basically, you want get the best "ripe" trich count. Also, as you dry and cure your bud, they will continue to ripen a bit, just an FYI