Stripping half the fan leaves off an auto at week four, photoperiod style, tends to stall the plant right when it should be building bud. A light pass removing only the leaves that shade lower sites, done once around the end of the stretch, is about as far as I go now. The before and after comparison on https://turboautoflowerseeds.com shows a heavily defoliated auto next to an untouched one from the same pack, and the untouched one won. Autos lack the reserves for aggressive leaf removal.
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