Plant isnt finished yet, and I like my stuff with not a lot of amber. There are still white stigmas, and few of the red/brown stigmas, have started to turn back towards the bud itself. Bud still needs to swell. Id say it needss 10-14 more days anyway.
Id cut the fert in half, and watch for it to start using less water. I wouldnt so called Flush it. Usually if I know Im 2 weeks from harvest, and feeding chemical fert, I cut the fert by 25%, and then the week before harvest, I cut it another 25%. And then the only reason is because the plant is going to be slowing its growth, and metabolism down. So it wont need as much food, or water.
As far as watering at the end, or not watering. I would just water cut back the water by 50% on the last watering. Time it so it will be time for the next watering, when you harvest it. Just keep it simple. Right now, the plant looks very good, and is probably some good shit right now, if the genetics are there. The plant looks healthy. Which is half the battle. No use fudging anything up now, or getting impatient. Just let the bud swell, cut back on fertilizer, and keep an eye out as to when the plant starts to use less water. Youve done a good job so far.
Simple, Basics, is usually always the best guarantee, for success.