Try to use the whole plant as a gauge. A few extra amber, or a bit more maturity simply adds to the overall end product, imo. I’ve taken 8 week strains to 12, and 10 weeks hacked at 9. Also, whatever a seed bank lists, add at least another week, or more.

Is the plant still making calyxs with white pistils? Is it still adding bulk to the buds? What’s it’s water consumption like? Nose? Trichomes? All things to when your preferences are maxed out.

Imho.