White Widow Autoflower from ILGM

Harvest Harvest HARVESSTTTTTTT!!!! Trichomes are starting to amber.. Im not sure how to measure the amount when the bottoms of the colas are all still cloudy.. I want to harvest right before the amber starts taking over.. So that most trichomes should be cloudy/milky.. Assuming that once they begin to amber at the top.. I guess about 10% are amber that the rest of the plant should be cloudy.. But not ambering just yet.. Anybody wanna chime in on how you do it, I'm open to learn.. This is how I've done it the last 3 or 4 harvests