you pretty much just gotta do everything right to maximize yeilds. my first grow i just completed i had 3 white widow females under 2 600s(i got fucked on my seeds). anyways i came out with 11 ounces for the three girls. 2 were topped. i think they all put out about the same amount but the untopped girl had a HUGE top cola, it weighs close to 3/4 of an ounce(dried,cured). keep in mind i grew hydroponically and organically. no c02 but i have it now during this grow. like has been said. everyday checkup. you must pay vigilent attention to them to maximize yeilds. you have to learn how to talk with your plants. they will tell you what they need. molasses has been said to help add on weight to buds. anyways just make sure you get your ducks in a line and you will come out with a great harvest. remember only skill and experience can maximize yeilds.