I do remove leaves during flowering, but my plants are only about to hit the 4 week mark vegging, I dont usualy remove leaves when vegging, bt usualy my plants have about 2" more height for the amount of leaves they have, also my plant grew 2 pair of branches coming from under the fan leaves so hoping I get an extra good harvest fromm this one. I dont think I will cut them as I never have and it doesnt seem to be something you MUST do from what I'm. I supose taking leaves off during veg is like putting old batteries in place of new, it wont get the same amount of energy as it could.