I go by Tric's .....
AFTER.... the hairs have receded… You have lots of white growing hairs… When hairs have receded, then check Tric’s…at least 3-4 more weeks…
Clear/Sparkling no THC, just born Tric’s, all plants make Trics till the end of there life, so you will never on a healthy plant have zero clear trics… That’s just the way it is…
Cloudy/Milky Ready… Peak Potency…
Amber/Tea colored degraded THC… not desirable… plants keep changing as you dry and cure from clear to cloudy, and from cloudy to amber/tea colored…
If you have old pot [old pot = oxymoron] check the tric’s on it…
https://www.rollitup.org/harvesting-curing/516184-trichomes-harvesting.html
Check out this thread, and seriously, understand it… Lots of great charts…
Amber/Tea colored trics not good…
Good Luck!