Right now I have 3x 315cmh (vertical hoods) in 4x8 tent (set back, not using front 1 ft) so actually 3x8. I'm thinking 4 in 6x6 tent might be better? Less watts per sq ft, but wall to wall and footprint overlap may be better?
I have an odd sized room that I framed up years ago. It's roughly 5 and a half feet by nine and a half. Originally ran a pair of SE 1000s in there. It now has 315s in the corners with a DE600/750 in the middle. It stomps the old setup and uses about the same wattage.