Thinks of going vertical ebb & grow buckets

[BigGreen]

I just did some measuring and the room is going to be 8x12. Ya think this will be enough room to use 4 600s? Im thinking of putting 2 rows of 5 plants and have the lights in the middle kinda like this.
o o o o o
x x x x
o o o o o

Or I could lay em out like this.
o o o o o
ox x x xo
o o o o o
Im not sure which way would yield more or fit better any ideas from any vert growers would be great and greatly appreciated.
Thanks BigGreen

 

[BigGreen]

I guess not that much love here in the vertical threads. Oh well thanks anyways I'll figure it out on my own.