Okay, so i'm doing a lot of pre-first grow research and i have a pretty simple question (i think). What kind of height can i expect to get out of most grows, as in, if i were to build a cabinet being approx 8'-9' high, how could i split up the levels? I'm sure it all depends on strains, lighting and other conditions but a rough idea would really help me out. I'm planning on using CFL tubes so i can keep them about 2" away from my ladies, and also to keep heat down. Thanks guys!