Wow, this thread was amusing...
Japanfreak offered the "Scientific Approach" and was castrated with "not using science"... that in it's self is very funny...
I myself have seen a total fan leaf removal grow that a buddy did, he removed them early, and his yield was still very good, his buds were overall smaller, but he had many more bottom buds develope into ones bigger than they normally would (no popcorn) so it worked out fine... I asked him why he did it, and he said, "its in ED ROSENTHOL'S book... and showed me it... yes... ED SAYS ITS OK TO REMOVE LEAVES...
I can't find the exact quote online, and I don't own the book, so I'll just post up a couple samples of ED saying it's ok...
here's one I found...
http://books.google.com/books?id=vWKMhfYryvUC&pg=PA207&lpg=PA207&dq=ed+rosenthal+remove+leaves&source=bl&ots=uo78pJ7kRb&sig=9DgARCxFjwaFmyzBL8NcF3Gm1bc&hl=en&ei=HPMaTcGYLI-CsQOa7pnCCg&sa=X&oi=book_result&ct=result&resnum=1&ved=0CBMQ6AEwAA#v=onepage&q&f=false
also...
Heads#7 march 2002.Guest editor ED ROSETHAL.Page 34 Pruning and staking."Buds on plants that are hidden by large fan leaves will not grow as quickly as buds getting direct light.Fan leaves blocking light from the buds should be removed.Leaves not blocking buds should be left on the plant.They create more sugars used for growth
I myself selectively remove some leaves If I don't think they will let light go to the other plants or bud sites... I'm not claiming any kind of 100+ year growing experiance, but my yields are average... at least I get 3/4-1lb out of a 400w... 3x3table veg 4 weeks topped once early no Co2... I do plan on revisiting this on my "test table"... to see how two very similar plants will yield... I am Lazy and still learning, so I'll Worry about my "ego" later...