Have you checked out the color of the trichomes?
I'd say, let it go at least another week, AT LEAST. But it's really tough to tell without knowing how far along in the flowering cycle it is.
I usually wait for the pistils to begin receeding into the flowers, at the point which the calyxes stop swelling--when the leaves also take on a different colored hue, other than "green."
Certain strains begin degrading in THC pretty quick after the buds have matured; and just one week can be the difference between getting a GOOD high, and a "mediocre one.
Of course, in the end, it all depends on what you are looking for!