Yeah what that guy said. You harvest based on the trichs not the time. The more you want it couchlock the longer you let them go amber, the more you want it cerebral you can chop when they first start turning amber. You can get a jewelers microscope off ebay for like 5 bucks or get a usb one like this.Depends on strain/ conditions ect.. Get a handheld 60+ microscope ... harvest between 10 percent to 50 percent amber depending on preference..
this is the ONLY correct answer.Until they are done.