Are the trichromes ready to start flush?

Im growing purple punch and it says its 8-9 week flower. im on day 53 of flower and growing in soil. Just wondering if I should start the flush now or if I could squeeze in one more feeding. Any responses would be much appreciated, Thanks.

Is the close up pic part of the leaf?

yeah i took it with my celestron digital microscope

The trichomes on the leaf can be a bit misleading. Notice the lack of milky trichomes in the pic. Its more less just clear or amber & not much in between. I usually check the calyxes in the buds to best determine when ready. May prove to be a bit more accurate for you to judge. Best of luck!