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Honestly if you’re growing with the HLG quantum boards I highly suggest going with the mainline method just because the buds at the very bottom were very small compared to the top & even tho most buds are expected to be smaller at the bottom it’s the fact of the matter of how relatively close they were compared to a CMH/HPS.
I’m actually planning on designing my own led grow light to be more intense and better than the quantum board.