Above all, check your Trichomes for peak maturity under a 30x-50x scope to see if they are all milky, or just the slightest hint of amber appearing on the tips of the flowers.
Most important is peak maturity really. We have strains that finish at 8, 9, and 10 weeks of age so I would not wait any longer for the plants to finish after peak maturity. You should rather take note of the amount of weeks it has taken to reach maturity and plan your next flip date according to that.
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