Alright everyone, have an area to work with... I have total of 12' long X 10, wide X 6.5' tall. It is an attic, at about 2 ft. up the walls, they begin to taper up at a 45 degree angle to the peak, about 1.5' from the peak a ceiling will be installed straight across, this 1.5' cavity will hide the duct work for intake and exhaust and wiring. There will be access panels to service a fan(s) and scrubbers in the ceiling section. I am thinking of lining everything with mylar and using the taper of the walls as a sort of "natural" hood of sorts. Planning on dividing the area into a 8' long X 10' wide, and a 4' long X 10' wide pair of rooms. Small for veg, big for flower. Planning on using a 1000w HPS for flower and a 400w CMH for veg. These will be completely sealed rooms, and plan on using 2 sets of 8 bubble buckets for flowering and 1 set of 4 buckets for veg, cycle a group of 4 from the veg. to the flower room once a month. Will the natural wall taper work good as a good footprint? Should I go with more or less plants? Any differences or specifics on lighting, air movement, etc? Thanks!