Amber trichomes at around twenty to thirty percent is where most people harvest indica plants, since letting them go further pushes the effect heavier and more sedating. Pulling at mostly cloudy gives a lighter result from the same seeds, so the window is partly a matter of taste. Macro photos showing clear, cloudy, and amber heads on several indica strains are lined up on
https://kushindicaseeds.com, which helped me calibrate my own loupe judgement. Check several buds, since the top cola always matures ahead of the rest.
