"Drop the scissors, and step away from the plant".

The large leaves are refered to as fan leaves. They store the nutrients and minerals, and photosynthesize like crazy, using light and chlorophyll to convert CO2 and H20 into sugars. (Readers Digest version) Removing them unnecessarily, isn't a good idea. Stunts growth and stresses the ladies.

Some gardeners trim the undergrowth because they feel it's a wasteful expenditure of the plants energy, but I leave 'em and use 'em after harvest for the re-veg process. (Rusty's Bonsai Downsizing thread)

But, to remove the fans to unshade the undergrowth is counter-productive. The fans are more important. :thumbsup:
(some exceptions may apply, like the Screen of Green technique...)
Rusty Trichome Reviewed by Rusty Trichome on . update on plants What is your experience level? first time on my own (helped friends in past) Your Equipment: .1) Type and wattage of lights. CFL's 23 watt. (100 watt equivalent) 2 over each plant. .2) Distance from tops? 3-4 inches .3) Reflector type? surrounded by white walls .4) Is there a consistent fresh air supply? 2 fans on 24/7 (1 coming in, 1 out) .5) Do you have an exhaust fan and a circulation fan? just 2 circulation fans .6) What are the bulb wattages, kelvin ratings, and schedule? 100 watt Rating: 5