I always watch for the pistils to go red and then recede back into the callyxs to start their "false pregnancy" before I start checking trichs. Otherwise I have a tendency to harvest before there is sufficient amber trichs. My Dinafem WW Auto is just over 60 and I'm shooting for 75. Mines in super soil but only in a 2 gallon pot. I'm guessin a zip and a half.