I'm just starting out and I got one seedling poke through today. My ventilation system is solid. It's not done yet but the design works well with the small space available. My only concern is feeding and lighting. I have a close friend with a MH lamp however I am also working on a college budget. My biggest question is, Are CFL's are a waste of my time and money or with strong genetics, good ventilation, and the loving care from one smart motherf***er, CFL's will produce a GOOD yield.