question about red hairs

Hi i have a question about red hairs and harvesting. I have red on here that when you have 90% red hairs its time to harvest. So my question is, is that 90% of the bud covered in red hairs or 90% of the whole plant is covered. I am asking because i have 9 dwc plants and they all have buds that are covered in red hairs and other buds on it that dont have any. normally i would not care but i am only in week 5 so i want to make sure that those buds are not going to loose potency while the rest of the plant finishes. Or will it and should the single buds be harvest now and harvest the rest later? Any sugestions will help a lot thank you

That is not correct some sprays will deaden that hairs and give you false results. Look at the trics.