Why would anyone do that.. you would be wasting the entire grow doing that . If your at amber there is no reason to take it farther...Im sure plants will do all kinds of weird shit when there dieing of old age. Anything more then 50% amber is a waste. thats even to high for me. I have never gone past 15% amber. 100% amber I wouldnt even want to use it.
100% amber is the end of life/maturity of the plant after that go 2-6 more weeks to make seeds naturally