don't say out of a pre-determined number that may or may not be true. it'll only motivate you to do something whimsical vs what the plant dictates.
guesstimates from the breeder are fine and do have a use, but don't allow it to be a part of determining harvest window in any way. it's not late or early realtive to an estimated guess for a wide range of genetic variety possible.
Some rigid beliefs below. I'm a fan of an earlier harvest with less amber visible, but some peopel like it near 100%. this is a personal preference and you should experiment to find what you prefer. I don't like weed that makes me sleepy, but not everyone has the same effects, even if most do. Think of any other drug like Nyquil. Some peopel get hyper from nyquil, others fall into a deep coma within 15-30minutes of taking it, bwahaha. You may like the chemical makeup of the buds at any point in the harvest window and the labels or what happens for others is completely irrelevant to that fact.
Can always take buds off at different times, label them as far as how much amber you see and you can test multiple stages of ripeness from one harvest. Makes keeping track of drying times a bit more complicated, but any adult should be able to handle that.