^agreed.i have a 1x2x3 cabinet with 9-11 24 watters and i just use the cheap 80cfm inline fan from the depot. my temps stay under 78 if its sucking.and under 85 if its blowing with passive exh.
lately i have found bake-a- round's at my local thrift store for cheap, i found one just before i bid on ebay, i have a few extras so pm me if you are having a hard time finding one.
i dont know if scrog would be as ideal for a harvest every month it takes time to fill out the screen.
but that is a sweet cab setup.might not get a harvest every 4 weeks but im staying tuned.