Quote-
"Heya!
If you judge by the pistils usually 70-90% ambered is a good time to harvest. Most people harvest when all the trichromes are milky to 30% amber. If you harvest with more milky trichs it will produce more of a head high effect, where as more amber trichromes will give you the couch lock effect.
Cheers and good luck!"
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Yes, but don't judge by pistils tho, the variations can be huge from one strain to the other.