I'm not positive, but I think that commercial growers may cut theirs to prevent certain diseases that attack the first growth. It's easier for them to cut all of it that search for which shoots may possibly infected. In a homegrowing atmosphere, we have much less to care for. Check you shoots individually... if they show signs of disease, then yes, cut them. I usually let mine go, and have never seen diseases in my area.
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Another HERMS rig...