I'm on my first grow. I used 1 flouro tube and 1 42 watt CFL to veg, topped at the fourth node. Then I added 4 more 24 watt CFL's. I'm in my 7th week of flowering right now with 5 CFL's, and everything is beautiful (this is bagseed too. mind you only 1 plant). I'm guestimating an ounce yield, maybe a little over... but this is only a 1.5 foot tall plant and the bud sites are still appearing everywhere. I am quite pleased with CFL growing, and feel that this plant still has a lot more bud to produce, especially at the bottom -- the colas are almost done.