Hey 420ponics, I got my clones from a friend locally. They are two skunk#1 clones and two skunk/ww/haze clones. The skunk is skunky as you'd expect, and the other two have a slight hazey, fruity undertone to them. I took the clones, stuck em in the bubblers and away they went.
At this point, my lights are about 2-2 1/2' away. It seems in this small space with so much light I get light bleaching on the plants directly under the lights. It's noticable because tops that are in the back corners usually are significantly greener than those directly under the reflectors. I actually doubt I'd have any problems with them raised to the 7' ceiling the whole grow. From bucket top to ceiling is only 5 1/2' or so anyway.
Veg was three weeks, and I think that covers anything my thread might not.
Now, back in the day on OG there was a lighting faq, and if I remember correctly, the 600W actually is more efficient over all than either the 400 or the 1000, which partly explains the popularity of 600W HPS systems. I can't explain the how or why, it's been a while, but I'm positive this was correct.