What kind of CFL's are you using?

Those plants look to be Sativa dominant is that correct? If so, it would be really hard to get a good harvest off of them using CFL's. For one, Sativas have less leaf matter and less chlorophyll than indicas so they absorb a lot LESS light and take MUCH longer to finish (surprised by the 7-8 week finishing time on this puppy). Also with Sativas, they don't produce higher quantities of buds, they produce higher quality buds.

Peace,

SMG