I dont know how many times I've said it before..... depriving a plant in the last couple of weeks when it needs the nutrients the most because of the myth that you can somehow flush nutrients out of a plant is retarded. All you are doing is a guaranteeing a way to reduce you're yields and quality.some nutrients are immobile and not able to be removed from the plant, others are mobile but are utilized more efficiently and thus not flushable either ( think yellowing leaves in flowering from lack of nitrogen)
The time you chop, the duration of the dry and cure is the way to make great cannabis....
When I was more inexperienced with growing cannabis I would flush too, I met and old timer who laughed when I asked him how he flushed..... he instructed me to make a note of my current grow at that times yield and the next run dont flush ..... I used the same strain from the same mother and the only change was the not flushing part.... I yielded over 2 more ounces from not flushing, after the dry and cure it was noticeably more potent than the last runs was.
Dont buy into the myth of flushing , it's some stoner myth conjured up by nutrient companies to sell you shit you dont need.