I am about 3 weeks into my first grow and i have a few questions for the more experienced.first off,i have 7 plants under a 600w hps in a 4x4 grow room.they were vegged for about 3 weeks with an average height of 2 feet with several branches.my first question is will a single 600w hps bring out maximum flowering potential????Or will i get a much larger yield if i add another 600w light?My second question is i am mostly likely going to do a sea of green for my second grow.I want to set it up in the every 2 week harvest.I want to yield 4 oz every two week cycle using 2x600w hps.is this a realistic goal. and how many small plants going straight to flower from clone would be most efficient under my light system. any feedback would be greatly appreciated