wk7 pistils 15-25% orange. Time to flush??

Ok I have carbo load and sweet leaf, and final faze products from advances nutrients and the strain is WW, I'd say another week of growth will Maximize growth and then it will be ready for harvest or another week at most hopefully.

I am just wondering if its too early to cut back to regular water and sweet leaf carbo load and final faze?? I just bought these produxts and didnt get a chance to use them during growth but now is always a time right?

follow the look of the trichomes, not the color of the pistils. I know its kind of hard to tell what the trichs should look like 7 to 10 days prior, but I like to look at the flowers, when they double in size, its time to flush.