well, it looks like fewer white pistils than i though i saw in the other pictures...
Still, from pics given in this question it's still hard to give you a specific answer.
take a cola off, and i bet it shrinks up more than you want at this point as it dries, but i could be wrong. like the other answers said, a magnifying glass (30x or more) would help greatly to assess the trichomes. This could take the decision out of your hands and simply rely on the triches nd ratio of amber you are shooting for.
if there's any deviation from upper levels and lower, you might want to stagger the harvest.
there are no real rules here... do what you must. i will say one thing, you put in months of effort, don't let a concern over a handful of days rush you.. if you see no development and the buds aren't filling out more.. take a bud off and see what happens over 2-3 days of drying. make sure it doesn't shrivel up to nothing.