But, only use the "weeks" as a basic guideline, not as set-in-stone and hard and fast rules of harvest... Only harvesty when THC and other cannabinoids are at their peak levels before they begin to degrade and lower in potency... When the trichs r clear, it is still too early as the gland heads havent developed all the way and the THC and other cannabinoids are not at their height... When the trichs are milky, they are ALMOST at their peaks, when they r all milky with sloght touches of amber, BAM!-thatz when they are PERFECT for cutting down and harvesting... However, some people prefer their trichs to bemore amber than others, and with that often comes a more sedative, "couch-lock"-type of effect, which DOES have itz place in medical aspects, and even in preferential aspects... So, My suggestion, is to take a lil when they are clear-milky, a lil when they r all milky, most when they are all milky, with touches of amber, and MABYE a lil of the rest once theyve all turned mostly all amber... That way, you can personally test each stage, and decide which you prefer, so that you will have a tried and tested basis for determining when you will take down the next crop... Also, going by stigma coloration is kind of "if-fy", as there can be 75% of them still white-ish, but the trichs r saying they r at peak-levels, and itz just up to the grower to take em or not if thatz the case... Some strains don't change stigma color by a greater percentage, than others do, when it is actually at itz peak ripeness to harvest... Yet, with some strains, the stigmas and trichomes play hand-in-hand with each other's stages of development, so itz a crapshoot, and you kinda haveta go by weeks, trichs, AND stigmas, to make the call on when itz time, u know?