Good to have you onboard Phillip,
You have highlighted a point and I appreciate it. Great minds think alike and, although 1000 watters in giant hoods supposedly have workable footprints of 6 x 6, I was not sold on planning things around this figure. As I always tend to work off of the lower end of estimates (in any walk of life), the 4 x 4 would obviously be ideal. My original sketch was working off of blueprints, but as it turns out, the inner walls are a bit less than 20 x 20. Therefore, I will be narrowing things a bit and the footprints will be closer to 5.5' x 17'. As per your 4.5' (54") ideal readings, my plants will be pushing it on the outer edges, but the overlap from one light to the next should make up some ground for the inside edge of the outer 2 plants...and the inner 4 will be getting drenched from both sides (this is my theory, anyhow...funny how we always live and learn...and here I expect to). I plan to have the 9, 105 watt CFLs running down each aisle, so hopefully they'll help....and back to the great minds think alike, I already plan to do the rotational thing (as I always have) until they get to the point of no return. Thanks for the input brotha..