They are a month old today and my setup is a 430 HPS lamp, with 2 CFLs hangin a little lower to keep a more MH type spectrum but imma take them out soon as i start flower. Those ones are on a higher level becuz of my space issue, but all seem to be growin equal, using some LST for the bigger ones. Yeah ill prob wait maybe 3 or so weeks then start to flower. The room issue will prob be taken care of as soon as i pull my males after the first week of flower then i can really setup them up a little better.