Little actual drawback to chopping at 6 weeks if they are drooping. You will get a ton of grow purists who think that harvest before all the pistils turn orange is sacreligious. Bullshit. As long as the nugs are sticky you have viable product. Another 2 weeks flowering will increase your yield a lot and the quality some. It's a trade-off the grower has to decide. If it suits your needs to chop early go ahead and you can argue with the purists.
Good luck, BigSteve.
Good luck, BigSteve.