What does everyone think of T5's for reefs

[Reefer Rob]

I recently switch from T5s to 400W MH, and I would say that with regards to light penetration the opposite is true. With metal halides light is much stronger at the top but decreases toward the bottom. T5s are a much more even light with a less noticeable difference top to bottom. The only thing I didn't like about T5s is the light is very flat, with no shadowing, which gives the corals an "unnatural" look. SPS corals do very well under T5 lighting, and there is way less of a heat issue.