I have one issue with MH and HPS in that I seem to get much closer branching of nodes with the T8. Why does it seem that I'm getting too much stretch and flimsier plants with the HIDs. The light is relatively close so it doesn't burn the plants. I don't have it as close obviously as I did with the T8's but there was a substantial difference in the thickness of the stems. So far I would have to say the T8's seem superior. I had 40,000 lumens with 432 watts whereas the 250 watt MH as about 20,000 and the 250 HPS has about 32000 lumens. I mean it was only 8,000 more lumens than the HPS though even at half power with half the tubes off I was getting much better growth with the T8 system. I'm hoping this improves with flowering where the HPS really is supposed to shine. What do you guys make of this?