This is one of my first times growing and I was just wondering when I should start my flowering cycle. I'm using three 40 watt cool white CFL's (7,800 lumens total) and is 5 sets high, though I cut off the bottom two sets. I was going to grow it another 2 or 3 sets (making it about 8 inches tall) then change it to a 12/12 cycle. Is this a good idea? Should I flower sooner or later?