The fan leaves on my Mystics are 9" across and I see them as giant solar panels. During the dark period they droop down but when the lamps are on they move up and orient themselves to receive maximum light.
To answer your question, I run 2 x 150 hps and 105W of CFLs, works great for me. I'm planning to add another 100 W of CFLs to run 500W total for all stages of growth.
And I think enough ppl have already told you not to remove leaves . . . hey, YOU have twenty fingers and toes! You don't need ALL of them, why not prune a few off?