Depends on what you want. If you don't want the THC to degrade, then avoid amber...or if you see amber starting to appear then harvest before more degrades. That is a general sign you are at peak THC production.You did a lot of good work and waitied patiently. Letting it rot would be a shame, but some people don't mind the loss of THC and prefer some or a lot of amber. Some plants finish from the top down, meaning those buds at top have reached their peak, but some lower buds have not. If you see that, You can do a partial harvest or (progressive harvest), and let some buds continue to mature if they are lagging behind... or even let it rot a bit on some buds you don't harvest at the peak time. This way you know what your preference is. If you do that, you haveba sample range to help you dial in your personal taste so there is no question when its good for you to harvest. Just be sure to keep everything labeled so you don't get it mixed up on what is what! Happy harvest day.