If the counting starts when the first set of leaves pop out then I'm at 8 weeks with today's pics. I've started plain water 4 days ago. How close does this look to chopping?
You have 2 weeks minimum. Don't flush, it's a useless practice. All you have done is starved it right when it should be fattening up the most. Flushing doesnt "remove nutes" from the plant and doesn't make smoke harsher.