Everyone harvests at all different times, its what sort of high your looking for. I only wait for amber trichomes as I prefer CBN to THC. When it breaks down to CBN that's the sort of high I like, the smoke that is strong enough to knock a camel out! I have been growing this way for 7 years and my last lot came out so strong my brothers girlfriend couldn't smoke it as it greened her out lol. I have always had amber trichomes and don't wait any longer for them to turn amber either. If your after a body high then yeah harvest with clear/milky trichomes but if your like me and want a real stoner of a smoke wait for amber. I am not going to argue with anyone on the subject either lol. take care now