I’m rescinding the question. I decided to go ahead and harvest the plant, which is currently hanging up to dry. My TDS had decreased from almost 3000 ppm at the beginning to 530 ppm at the two week flush point. I asked the owner of a hydroponics shop in my town, and he said that I should be good to go, so I did. I appreciate the grower “hashy” for his or her response to my question. Thank you.