Thanks for that link Bejay! It's always a good thing to have more infomation about light placement.

As far as the carbon filter, I've heard a rule of thumb is that it cuts your efficiency of the fan in half, leaving me with 130 cfm if I don't dial it down. I'm thinking that should more than suffice for a 15 cubic foot space. Anyone with a can 9000 filter have a guess on how much it reduces fan efficieny?

Also, Bejay, I'll be using feminized seeds instead of clones. I was planning on lst and FIM after 3 weeks or after the 4-5 node (which ever happens first) I'd continue to lst up until 6 weeks and then flip them.

Any suggestions anyone?